Fixed a bunch of typos, grammar errors, and unclear wording in the sh

man page, and the corresponding problems in the ksh page.

4 files changed, 550 insertions, 336 deletions

diff --git a/bin/ksh/ksh.1 b/bin/ksh/ksh.1
index 4e37651c1c6..2ef4cde62c9 100644
--- a/bin/ksh/ksh.1
+++ b/bin/ksh/ksh.1
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ksh.1,v 1.19 1999/06/03 09:50:31 aaron Exp $
+.\"	$OpenBSD: ksh.1,v 1.20 1999/06/14 03:13:58 pjanzen Exp $
 .\"
 .\" Copyright (c) 1980, 1990, 1993
 .\"     The Regents of the University of California.  All rights reserved.
@@ -80,14 +80,14 @@ If neither the
 .Fl c
 nor the
 .Fl s
-options are specified, the first non-option argument specifies the name
+option is specified, the first non-option argument specifies the name
 of a file the shell reads commands from. If there are no non-option
 arguments, the shell reads commands from the standard input. The name of
 the shell (i.e., the contents of $0) is determined as follows: if the
 .Fl c
 option is used and there is a non-option argument, it is used as the name;
 if commands are being read from a file, the file is used as the name;
-otherwise the name the shell was called with (i.e., argv[0]) is used.
+otherwise, the name the shell was called with (i.e., argv[0]) is used.
 .Pp
 A shell is
 .Dq interactive
@@ -227,7 +227,7 @@ and
 .Ql \&)
 .Pc .
 Aside from delimiting words, spaces and tabs are ignored, while newlines
-usually delimit commands. The meta-charcters are used in building the
+usually delimit commands. The meta-characters are used in building the
 following tokens:
 .Ql < ,
 .Ql <& ,
@@ -291,7 +291,7 @@ the
 .Ql #
 up to the nearest newline is ignored;
 .Ql $
-is used to introduce parameter, command and arithmetic substitutions (see
+is used to introduce parameter, command, and arithmetic substitutions (see
 .Sx Substitution
 below);
 .Ql `
@@ -460,7 +460,7 @@ control structure.
 .Pp
 In the following compound command descriptions, command lists (denoted as
 .Em list )
-that are followed by reserved words must end with a semi-colon, a newline or
+that are followed by reserved words must end with a semicolon, a newline, or
 a (syntactically correct) reserved word. For example,
 .Pp
 .Bl -inset -indent -compact
@@ -515,7 +515,7 @@ and
 .Ql /
 are dropped. Note that any unquoted space before and after a pattern is
 stripped; any space with a pattern must be quoted. Both the word and the
-patterns are subject to parameter, command and arithmetic substitution as
+patterns are subject to parameter, command, and arithmetic substitution as
 well as tilde substitution. For historical reasons, open and close braces
 may be used instead of
 .Ic in
@@ -543,7 +543,7 @@ is set to the word and
 is executed. If
 .Ic in
 is not used to specify a word list, the positional parameters ($1, $2, etc.)
-are used instead. For historical reasons, open and clase braces may be used
+are used instead. For historical reasons, open and close braces may be used
 instead of
 .Ic do
 and
@@ -569,7 +569,7 @@ If the exit status of the first
 .Ar list
 is zero, the second
 .Ar list
-is executed; otherwise the
+is executed; otherwise, the
 .Ar list
 following the
 .Ic elif ,
@@ -734,7 +734,7 @@ operators must always be used (e.g., instead of
 use
 .Ic \&[[ Fl n Ar str Ic \&]] ) .
 .It
-Parameter, command and arithmetic substitutions are performed as expressions
+Parameter, command, and arithmetic substitutions are performed as expressions
 are evaluated and lazy expression evaluation is used for the
 .Ql &&
 and
@@ -801,7 +801,7 @@ for its value) when it reads the first word of a command. An expanded alias
 is re-processed to check for more aliases. If a command alias ends in a
 space or tab, the following word is also checked for alias expansion. The
 alias expansion process stops when a word that is not an alias is found, when
-a quoted word is found or when an alias word that iscurrently being expanded
+a quoted word is found or when an alias word that is currently being expanded
 is found.
 .Pp
 The following command aliases are defined automatically by the shell:
@@ -863,7 +863,7 @@ and
 .Ss Substitution
 The first step the shell takes in executing a simple-command is to perform
 substitutions on the words of the command. There are three kinds of
-substitution: parameter, command and arithmetic. Parameter substitutions,
+substitution: parameter, command, and arithmetic. Parameter substitutions,
 which are described in detail in the next section, take the form
 .Ic $name
 or
@@ -882,7 +882,7 @@ the current value of the
 parameter. The
 .Ev IFS
 parameter specifies a list of characters which are used to break a string up
-into several words; any characters from the set space, tab and newline that
+into several words; any characters from the set space, tab, and newline that
 appear in the
 .Ev IFS
 characters are called
@@ -892,7 +892,7 @@ Sequences of one or more
 whitespace characters, in combination with zero or no
 .Pf non- Ev IFS
 whitespace
-characters delimit a field. As a special case, leading and trailing
+characters, delimit a field. As a special case, leading and trailing
 .Ev IFS
 whitespace is stripped (i.e., no leading or trailing empty field is created by
 it); leading or trailing
@@ -915,7 +915,7 @@ Note that if the
 parameter is set to the
 .Dv NULL
 string, no field splitting is done; if the parameter is unset, the default
-value of space, tab and newline is used.
+value of space, tab, and newline is used.
 .Pp
 The results of substitution are, unless otherwise specified, also subject to
 brace expansion and file name expansion (see the relevant sections below).
@@ -925,7 +925,7 @@ command, which is run in a subshell. For
 .Ic $( Ns Ar command Ns Ic )
 substitutions, normal quoting rules are used when
 .Ar command
-is parsed, however, for the
+is parsed; however, for the
 .Ic ` Ns Ar command Ns Ic `
 form, a
 .Ql \e
@@ -950,7 +950,7 @@ but it is carried out more efficiently because no process is started).
 .Sy Note:
 .Ic $( Ns Ar command Ns Ic \&)
 expressions are currently parsed by finding the matching parenthesis,
-regardless of quoting. This will hopefully be fixed soon.
+regardless of quoting. This should be fixed soon.
 .Pp
 Arithmetic substitutions are replaced by the value of the specified expression.
 For example, the command
@@ -1054,7 +1054,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise
+it is substituted; otherwise,
 .Ar word
 is substituted.
 .It Xo Ic ${ Ns Ar name Ns
@@ -1065,7 +1065,7 @@ If
 is set and not
 .Dv NULL ,
 .Ar word
-is substituted, otherwise nothing is substituted.
+is substituted; otherwise, nothing is substituted.
 .It Xo Ic ${ Ns Ar name Ns
 .Ic \&:\&= Ns Ar word Ns Ic \&}
 .Xc
@@ -1073,7 +1073,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise it is assigned
+it is substituted; otherwise, it is assigned
 .Ar word
 and the resulting value of
 .Ar name
@@ -1085,7 +1085,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise
+it is substituted; otherwise,
 .Ar word
 is printed on standard error (preceded by
 .Ar name Ns No \&: )
@@ -1097,7 +1097,7 @@ is used instead.
 .Pp
 In the above modifiers, the
 .Ql \&:
-can be omitted, in which case the conditions only depand on
+can be omitted, in which case the conditions only depend on
 .Ar name
 being set (as opposed to set and not
 .Dv NULL ) .
@@ -1135,8 +1135,8 @@ matches the beginning of the value of parameter
 .Ar name ,
 the matched text is deleted from the result of substitution. A single
 .Ql #
-results in the shortest match, two
-of them results in the longest match.
+results in the shortest match, and two
+of them result in the longest match.
 .Sm off
 .It Xo
 .Ic ${ Ar name Ic \&% Ar pattern Ic \&},\ \&
@@ -1391,7 +1391,7 @@ below.
 .It Ev PPID
 The process ID of the shell's parent (read-only).
 .It Ev PS1
-The primary prompt for interactive shells. Parameter, command and arithmetic
+The primary prompt for interactive shells. Parameter, command, and arithmetic
 substitutions are performed, and
 .Ql !
 is replaced with the current command number (see
@@ -1428,7 +1428,7 @@ statement when reading a menu selection. Default is
 .It Ev PS4
 Used to prefix commands that are printed during execution tracing (see
 .Ic set Fl x
-command below). Parameter, command and arithmetic substitutions are performed
+command below). Parameter, command, and arithmetic substitutions are performed
 before it is printed. Default is
 .Dq \&+\ \& .
 .It Ev PWD
@@ -1695,8 +1695,8 @@ inside a
 .Ic \&[ Ns No .. Ns Ic \&]
 expression) are not yet implemented.
 .Ss Input/output redirection
-When a command is executed, its standard input, standard output and standard
-error (file descriptors 0, 1 and 2, respectively) are normally inherited from
+When a command is executed, its standard input, standard output, and standard
+error (file descriptors 0, 1, and 2, respectively) are normally inherited from
 the shell. Three exceptions to this are commands in pipelines, for which
 standard input and/or standard output are those set up by the pipeline,
 asynchronous commands created when job control is disabled, for which standard
@@ -1711,8 +1711,8 @@ If
 .Ar file
 does not exist, it is created; if it does exist, is a regular file and the
 .Ic noclobber
-option is set, an error occurs, otherwise the file is truncated. Note that this
-means the command
+option is set, an error occurs; otherwise, the file is truncated. Note that
+this means the command
 .Ic cmd < foo > foo
 will open
 .Ar foo
@@ -1745,7 +1745,7 @@ except the file is opened for reading and writing.
 .It Ic \&<\&< Ar marker
 After reading the command line containing this kind of redirection (called a
 .Dq here document ) ,
-the shell copies lines from the command source into a termpoary file until a
+the shell copies lines from the command source into a temporary file until a
 line matching
 .Ar marker
 is read. When the command is executed, standard input is redirected from the
@@ -1753,7 +1753,7 @@ temporary file. If
 .Ar marker
 contains no quoted characters, the contents of the temporary file are processed
 as if enclosed in double quotes each time the command is executed, so
-parameter, command and arithmetic substitutions are performed, along with
+parameter, command, and arithmetic substitutions are performed, along with
 backslash
 .Pq Sq \e
 escapes for
@@ -1787,8 +1787,8 @@ except the operation is done on standard output.
 .Pp
 In any of the above redirections, the file descriptor that is redirected (i.e.,
 standard input or standard output) can be explicitly given by preceding the
-redirection with a single digit. Parameter, command and arithmetic
-substitutions, tilde substitutions and (if the shell is interative)
+redirection with a single digit. Parameter, command, and arithmetic
+substitutions, tilde substitutions, and (if the shell is interactive)
 file name generation are all performed on the
 .Ar file ,
 .Ar marker
@@ -1799,8 +1799,8 @@ generation are only used if a single file is matched; if multiple files match,
 the word with the expanded file name generation characters is used. Note
 that in restricted shells, redirections which can create files cannot be used.
 .Pp
-For simple-commands, redirections may appear anywhere in the command, for
-compund-commands
+For simple-commands, redirections may appear anywhere in the command; for
+compound-commands
 .Po
 .Ic if
 statements, etc.
@@ -1892,9 +1892,12 @@ Result is the argument (included for completeness).
 .It unary Ic \&-
 Negation.
 .It Ic \&!
-Logical NOT; the result is 1 if argument is zero, 0 if not.
+Logical
+.Tn NOT ;
+the result is 1 if argument is zero, 0 if not.
 .It Ic \&~
-Arithmetic (bit-wise) NOT.
+Arithmetic (bit-wise)
+.Tn NOT .
 .It Ic \&+\&+
 Increment; must be applied to a parameter (not a literal or other expression).
 The parameter is incremented by 1. When used as a prefix operator, the result
@@ -1925,17 +1928,25 @@ is the same as
 .Ao Ar expr Ac
 .Ic \&) .
 .It Ic \&|\&|
-Logical OR; the result is 1 if either argument is non-zero, 0 if not. The right
+Logical
+.Tn OR ;
+the result is 1 if either argument is non-zero, 0 if not. The right
 argument is evaluated only if the left argument is zero.
 .It Ic \&&\&&
-Logical AND; the result is 1 if both arguments are non-zero, 0 if not. The
+Logical
+.Tn AND ;
+the result is 1 if both arguments are non-zero, 0 if not. The
 right argument is evaluated only if the left argument is non-zero.
 .It Ic \&|
-Arithmetic (bit-wise) OR.
+Arithmetic (bit-wise)
+.Tn OR .
 .It Ic ^
-Arithmetic (bit-wise) XOR (exclusive-OR).
+Arithmetic (bit-wise)
+.Tn XOR
+(exclusive-OR).
 .It Ic \&&
-Arithmetic (bit-wise) AND.
+Arithmetic (bit-wise)
+.Tn AND .
 .It Ic ==
 Equal; the result is 1 if both arguments are equal, 0 if not.
 .It Ic \&!=
@@ -2020,11 +2031,11 @@ syntax or the Bourne/POSIX shell
 .Fn name
 syntax (see below for the difference between the two forms). Functions are like
 .Li .-scripts
-in that they are executed in the current environment. Howeer, unlike
+in that they are executed in the current environment. However, unlike
 .Li .-scripts ,
 shell arguments (i.e., positional parameters $1, $2, etc.) are never visible
 inside them. When the shell is determining the location of a command, functions
-are searched after special built-in commands, and before regular and
+are searched after special built-in commands, before regular and
 non-regular built-ins, and before the
 .Ev PATH
 is searched.
@@ -2121,7 +2132,7 @@ returns.
 .Ss POSIX mode
 The shell is intended to be
 .Tn POSIX
-compliant, however, in some cases,
+compliant; however, in some cases,
 .Tn POSIX
 behaviour is contrary either to the original Korn shell behaviour or to user
 convenience. How the shell behaves in these cases is determined by the state
@@ -2131,7 +2142,7 @@ option
 .Pq Ic set Fl o Ic posix .
 If it is on, the
 .Tn POSIX
-behaviour is followed, otherwise it is not. The
+behaviour is followed; otherwise, it is not. The
 .Ic posix
 option is set automatically when the shell starts up if the environment
 contains the
@@ -2139,7 +2150,7 @@ contains the
 parameter. (The shell can also be compiled so that it is in
 .Tn POSIX
 mode by
-default, however this is usually not desirable).
+default; however, this is usually not desirable).
 .Pp
 The following is a list of things that are affected by the state of the
 .Ic posix
@@ -2215,7 +2226,7 @@ mode, brace expansion is enabled. Note that
 .Ev POSIXLY_CORRECT
 parameter) automatically turns the
 .Ic braceexpand
-option off, however, it can be explicitly turned on later.
+option off; however, it can be explicitly turned on later.
 .It
 .Ic set \&- .
 In
@@ -2317,8 +2328,8 @@ test may be left out and defaults to 1).
 .El
 .Ss Command execution
 After evaluation of command-line arguments, redirections and parameter
-assignments, the type of command is determined; a special built-in, a function,
-a regular built-in, or the name of a file to execute found using the
+assignments, the type of command is determined:  a special built-in, a
+function, a regular built-in, or the name of a file to execute found using the
 .Ev PATH
 parameter. The checks are made in the above order. Special built-in commands
 differ from other commands in that the
@@ -2555,7 +2566,7 @@ exit, and command assignments are not permanent). If the
 .Fl p
 option is given, a default search path is used instead of the current value of
 .Ev PATH
-(the actual value of the default path is system dependent; on
+(the actual value of the default path is system dependent: on
 .Tn POSIX Ns ish
 systems,
 it is the value returned by
@@ -2619,7 +2630,8 @@ string which the shell then parses and executes in the current environment.
 .Xc
 The command is executed without forking, replacing the shell process.
 .Pp
-If no arguments are given, and I/O redirection is permanent and the shell is
+If no command is given except for I/O redirection, the I/O redirection is
+permanent and the shell is
 not replaced. Any file descriptors greater than 2 which are opened or
 .Xr dup 2 Ns 'd
 in this way are not made available to other executed commands (i.e., commands
@@ -2702,10 +2714,10 @@ parameters, if no arguments are given) and to check for legal options.
 contains the option letters that
 .Ic getopts
 is to recognize. If a letter is followed by a colon, the option is expected to
-ahve an argument. Options that do not take arguments may be grouped in a single
+have an argument. Options that do not take arguments may be grouped in a single
 argument. If an option takes an argument and the option character is not the
 last character of the argument it is found in, the remainder of the argument is
-taken to be the option's argument, otherwise, the next argument is the option's
+taken to be the option's argument; otherwise, the next argument is the option's
 argument.
 .Pp
 Each time
@@ -2810,7 +2822,7 @@ is syntactic sugar for
 .Li | Fl R No [-en] Oc [argument\ ...]
 .Xc
 .Ic print
-prints its arguments on the standard output, separated by spaces, and
+prints its arguments on the standard output, separated by spaces and
 terminated with a newline. The
 .Fl n
 option suppresses the newline. By default, certain C escapes are translated.
@@ -3190,7 +3202,7 @@ defaults to 1.
 .Ic test
 evaluates the
 .Ar expression
-and returns zero status if true, 1 status if fase, and greater than 1 if there
+and returns zero status if true, 1 status if false, or greater than 1 if there
 was an error. It is normally used as the condition command of
 .Ic if
 and
@@ -3254,7 +3266,7 @@ mode has sticky bit set.
 is not empty.
 .It Fl O Ar file
 .Ar file Ns 's
-owned is the shell's effective user ID.
+owner is the shell's effective user ID.
 .It Fl G Ar file
 .Ar file Ns 's
 group is the shell's effective group ID.
@@ -3347,11 +3359,14 @@ increasing order of precedence):
 .Pp
 .Bl -tag -width "expr -o expr" -compact
 .It Ar expr Fl o Ar expr
-Logical OR.
+Logical
+.Tn OR .
 .It Ar expr Fl a Ar expr
-Logical AND.
+Logical
+.Tn AND .
 .It Ic \&! Ar expr
-Logical NOT.
+Logical
+.Tn NOT .
 .It Ic \&( Ar expr Ic \&)
 Grouping.
 .El
@@ -3664,7 +3679,7 @@ Display or set the file permission creation mask, or umask (see
 .Xr umask 2 ) .
 If the
 .Fl S
-option is used, the mask displayed or set is symbolic, otherwise it is an
+option is used, the mask displayed or set is symbolic; otherwise, it is an
 octal number.
 .Pp
 Symbolic masks are like those used by
@@ -3997,7 +4012,7 @@ words, leaving the cursor past the end of the last word.
 .Pp
 If the current line does not being with a comment character, one is added at
 the beginning of the line and the line is entered (as if return had been
-pressed), otherwise the existing comment characters are removed and the cursor
+pressed); otherwise, the existing comment characters are removed and the cursor
 is placed at the beginning of the line.
 .It Ic complete ^[^[
 Automatically completes as much as is unique of the command name or the file
@@ -4230,7 +4245,7 @@ Like vi, there are two modes --
 mode and
 .Dq command
 mode. In insert mode, most characters are simply put in the buffer at the
-current cursor position as they are typed, however, some characters are
+current cursor position as they are typed; however, some characters are
 treated specially. In particular, the following characters are taken from
 current tty settings (see
 .Xr tty 1 )
diff --git a/bin/ksh/ksh.1tbl b/bin/ksh/ksh.1tbl
index 6ef878c51c2..87858d03d22 100644
--- a/bin/ksh/ksh.1tbl
+++ b/bin/ksh/ksh.1tbl
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ksh.1tbl,v 1.19 1999/06/03 09:50:31 aaron Exp $
+.\"	$OpenBSD: ksh.1tbl,v 1.20 1999/06/14 03:13:58 pjanzen Exp $
 .\"
 .\" Copyright (c) 1980, 1990, 1993
 .\"     The Regents of the University of California.  All rights reserved.
@@ -80,14 +80,14 @@ If neither the
 .Fl c
 nor the
 .Fl s
-options are specified, the first non-option argument specifies the name
+option is specified, the first non-option argument specifies the name
 of a file the shell reads commands from. If there are no non-option
 arguments, the shell reads commands from the standard input. The name of
 the shell (i.e., the contents of $0) is determined as follows: if the
 .Fl c
 option is used and there is a non-option argument, it is used as the name;
 if commands are being read from a file, the file is used as the name;
-otherwise the name the shell was called with (i.e., argv[0]) is used.
+otherwise, the name the shell was called with (i.e., argv[0]) is used.
 .Pp
 A shell is
 .Dq interactive
@@ -227,7 +227,7 @@ and
 .Ql \&)
 .Pc .
 Aside from delimiting words, spaces and tabs are ignored, while newlines
-usually delimit commands. The meta-charcters are used in building the
+usually delimit commands. The meta-characters are used in building the
 following tokens:
 .Ql < ,
 .Ql <& ,
@@ -291,7 +291,7 @@ the
 .Ql #
 up to the nearest newline is ignored;
 .Ql $
-is used to introduce parameter, command and arithmetic substitutions (see
+is used to introduce parameter, command, and arithmetic substitutions (see
 .Sx Substitution
 below);
 .Ql `
@@ -460,7 +460,7 @@ control structure.
 .Pp
 In the following compound command descriptions, command lists (denoted as
 .Em list )
-that are followed by reserved words must end with a semi-colon, a newline or
+that are followed by reserved words must end with a semicolon, a newline, or
 a (syntactically correct) reserved word. For example,
 .Pp
 .Bl -inset -indent -compact
@@ -515,7 +515,7 @@ and
 .Ql /
 are dropped. Note that any unquoted space before and after a pattern is
 stripped; any space with a pattern must be quoted. Both the word and the
-patterns are subject to parameter, command and arithmetic substitution as
+patterns are subject to parameter, command, and arithmetic substitution as
 well as tilde substitution. For historical reasons, open and close braces
 may be used instead of
 .Ic in
@@ -543,7 +543,7 @@ is set to the word and
 is executed. If
 .Ic in
 is not used to specify a word list, the positional parameters ($1, $2, etc.)
-are used instead. For historical reasons, open and clase braces may be used
+are used instead. For historical reasons, open and close braces may be used
 instead of
 .Ic do
 and
@@ -569,7 +569,7 @@ If the exit status of the first
 .Ar list
 is zero, the second
 .Ar list
-is executed; otherwise the
+is executed; otherwise, the
 .Ar list
 following the
 .Ic elif ,
@@ -734,7 +734,7 @@ operators must always be used (e.g., instead of
 use
 .Ic \&[[ Fl n Ar str Ic \&]] ) .
 .It
-Parameter, command and arithmetic substitutions are performed as expressions
+Parameter, command, and arithmetic substitutions are performed as expressions
 are evaluated and lazy expression evaluation is used for the
 .Ql &&
 and
@@ -801,7 +801,7 @@ for its value) when it reads the first word of a command. An expanded alias
 is re-processed to check for more aliases. If a command alias ends in a
 space or tab, the following word is also checked for alias expansion. The
 alias expansion process stops when a word that is not an alias is found, when
-a quoted word is found or when an alias word that iscurrently being expanded
+a quoted word is found or when an alias word that is currently being expanded
 is found.
 .Pp
 The following command aliases are defined automatically by the shell:
@@ -863,7 +863,7 @@ and
 .Ss Substitution
 The first step the shell takes in executing a simple-command is to perform
 substitutions on the words of the command. There are three kinds of
-substitution: parameter, command and arithmetic. Parameter substitutions,
+substitution: parameter, command, and arithmetic. Parameter substitutions,
 which are described in detail in the next section, take the form
 .Ic $name
 or
@@ -882,7 +882,7 @@ the current value of the
 parameter. The
 .Ev IFS
 parameter specifies a list of characters which are used to break a string up
-into several words; any characters from the set space, tab and newline that
+into several words; any characters from the set space, tab, and newline that
 appear in the
 .Ev IFS
 characters are called
@@ -892,7 +892,7 @@ Sequences of one or more
 whitespace characters, in combination with zero or no
 .Pf non- Ev IFS
 whitespace
-characters delimit a field. As a special case, leading and trailing
+characters, delimit a field. As a special case, leading and trailing
 .Ev IFS
 whitespace is stripped (i.e., no leading or trailing empty field is created by
 it); leading or trailing
@@ -915,7 +915,7 @@ Note that if the
 parameter is set to the
 .Dv NULL
 string, no field splitting is done; if the parameter is unset, the default
-value of space, tab and newline is used.
+value of space, tab, and newline is used.
 .Pp
 The results of substitution are, unless otherwise specified, also subject to
 brace expansion and file name expansion (see the relevant sections below).
@@ -925,7 +925,7 @@ command, which is run in a subshell. For
 .Ic $( Ns Ar command Ns Ic )
 substitutions, normal quoting rules are used when
 .Ar command
-is parsed, however, for the
+is parsed; however, for the
 .Ic ` Ns Ar command Ns Ic `
 form, a
 .Ql \e
@@ -950,7 +950,7 @@ but it is carried out more efficiently because no process is started).
 .Sy Note:
 .Ic $( Ns Ar command Ns Ic \&)
 expressions are currently parsed by finding the matching parenthesis,
-regardless of quoting. This will hopefully be fixed soon.
+regardless of quoting. This should be fixed soon.
 .Pp
 Arithmetic substitutions are replaced by the value of the specified expression.
 For example, the command
@@ -1054,7 +1054,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise
+it is substituted; otherwise,
 .Ar word
 is substituted.
 .It Xo Ic ${ Ns Ar name Ns
@@ -1065,7 +1065,7 @@ If
 is set and not
 .Dv NULL ,
 .Ar word
-is substituted, otherwise nothing is substituted.
+is substituted; otherwise, nothing is substituted.
 .It Xo Ic ${ Ns Ar name Ns
 .Ic \&:\&= Ns Ar word Ns Ic \&}
 .Xc
@@ -1073,7 +1073,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise it is assigned
+it is substituted; otherwise, it is assigned
 .Ar word
 and the resulting value of
 .Ar name
@@ -1085,7 +1085,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise
+it is substituted; otherwise,
 .Ar word
 is printed on standard error (preceded by
 .Ar name Ns No \&: )
@@ -1097,7 +1097,7 @@ is used instead.
 .Pp
 In the above modifiers, the
 .Ql \&:
-can be omitted, in which case the conditions only depand on
+can be omitted, in which case the conditions only depend on
 .Ar name
 being set (as opposed to set and not
 .Dv NULL ) .
@@ -1135,8 +1135,8 @@ matches the beginning of the value of parameter
 .Ar name ,
 the matched text is deleted from the result of substitution. A single
 .Ql #
-results in the shortest match, two
-of them results in the longest match.
+results in the shortest match, and two
+of them result in the longest match.
 .Sm off
 .It Xo
 .Ic ${ Ar name Ic \&% Ar pattern Ic \&},\ \&
@@ -1391,7 +1391,7 @@ below.
 .It Ev PPID
 The process ID of the shell's parent (read-only).
 .It Ev PS1
-The primary prompt for interactive shells. Parameter, command and arithmetic
+The primary prompt for interactive shells. Parameter, command, and arithmetic
 substitutions are performed, and
 .Ql !
 is replaced with the current command number (see
@@ -1428,7 +1428,7 @@ statement when reading a menu selection. Default is
 .It Ev PS4
 Used to prefix commands that are printed during execution tracing (see
 .Ic set Fl x
-command below). Parameter, command and arithmetic substitutions are performed
+command below). Parameter, command, and arithmetic substitutions are performed
 before it is printed. Default is
 .Dq \&+\ \& .
 .It Ev PWD
@@ -1695,8 +1695,8 @@ inside a
 .Ic \&[ Ns No .. Ns Ic \&]
 expression) are not yet implemented.
 .Ss Input/output redirection
-When a command is executed, its standard input, standard output and standard
-error (file descriptors 0, 1 and 2, respectively) are normally inherited from
+When a command is executed, its standard input, standard output, and standard
+error (file descriptors 0, 1, and 2, respectively) are normally inherited from
 the shell. Three exceptions to this are commands in pipelines, for which
 standard input and/or standard output are those set up by the pipeline,
 asynchronous commands created when job control is disabled, for which standard
@@ -1711,8 +1711,8 @@ If
 .Ar file
 does not exist, it is created; if it does exist, is a regular file and the
 .Ic noclobber
-option is set, an error occurs, otherwise the file is truncated. Note that this
-means the command
+option is set, an error occurs; otherwise, the file is truncated. Note that
+this means the command
 .Ic cmd < foo > foo
 will open
 .Ar foo
@@ -1745,7 +1745,7 @@ except the file is opened for reading and writing.
 .It Ic \&<\&< Ar marker
 After reading the command line containing this kind of redirection (called a
 .Dq here document ) ,
-the shell copies lines from the command source into a termpoary file until a
+the shell copies lines from the command source into a temporary file until a
 line matching
 .Ar marker
 is read. When the command is executed, standard input is redirected from the
@@ -1753,7 +1753,7 @@ temporary file. If
 .Ar marker
 contains no quoted characters, the contents of the temporary file are processed
 as if enclosed in double quotes each time the command is executed, so
-parameter, command and arithmetic substitutions are performed, along with
+parameter, command, and arithmetic substitutions are performed, along with
 backslash
 .Pq Sq \e
 escapes for
@@ -1787,8 +1787,8 @@ except the operation is done on standard output.
 .Pp
 In any of the above redirections, the file descriptor that is redirected (i.e.,
 standard input or standard output) can be explicitly given by preceding the
-redirection with a single digit. Parameter, command and arithmetic
-substitutions, tilde substitutions and (if the shell is interative)
+redirection with a single digit. Parameter, command, and arithmetic
+substitutions, tilde substitutions, and (if the shell is interactive)
 file name generation are all performed on the
 .Ar file ,
 .Ar marker
@@ -1799,8 +1799,8 @@ generation are only used if a single file is matched; if multiple files match,
 the word with the expanded file name generation characters is used. Note
 that in restricted shells, redirections which can create files cannot be used.
 .Pp
-For simple-commands, redirections may appear anywhere in the command, for
-compund-commands
+For simple-commands, redirections may appear anywhere in the command; for
+compound-commands
 .Po
 .Ic if
 statements, etc.
@@ -1892,9 +1892,12 @@ Result is the argument (included for completeness).
 .It unary Ic \&-
 Negation.
 .It Ic \&!
-Logical NOT; the result is 1 if argument is zero, 0 if not.
+Logical
+.Tn NOT ;
+the result is 1 if argument is zero, 0 if not.
 .It Ic \&~
-Arithmetic (bit-wise) NOT.
+Arithmetic (bit-wise)
+.Tn NOT .
 .It Ic \&+\&+
 Increment; must be applied to a parameter (not a literal or other expression).
 The parameter is incremented by 1. When used as a prefix operator, the result
@@ -1925,17 +1928,25 @@ is the same as
 .Ao Ar expr Ac
 .Ic \&) .
 .It Ic \&|\&|
-Logical OR; the result is 1 if either argument is non-zero, 0 if not. The right
+Logical
+.Tn OR ;
+the result is 1 if either argument is non-zero, 0 if not. The right
 argument is evaluated only if the left argument is zero.
 .It Ic \&&\&&
-Logical AND; the result is 1 if both arguments are non-zero, 0 if not. The
+Logical
+.Tn AND ;
+the result is 1 if both arguments are non-zero, 0 if not. The
 right argument is evaluated only if the left argument is non-zero.
 .It Ic \&|
-Arithmetic (bit-wise) OR.
+Arithmetic (bit-wise)
+.Tn OR .
 .It Ic ^
-Arithmetic (bit-wise) XOR (exclusive-OR).
+Arithmetic (bit-wise)
+.Tn XOR
+(exclusive-OR).
 .It Ic \&&
-Arithmetic (bit-wise) AND.
+Arithmetic (bit-wise)
+.Tn AND .
 .It Ic ==
 Equal; the result is 1 if both arguments are equal, 0 if not.
 .It Ic \&!=
@@ -2020,11 +2031,11 @@ syntax or the Bourne/POSIX shell
 .Fn name
 syntax (see below for the difference between the two forms). Functions are like
 .Li .-scripts
-in that they are executed in the current environment. Howeer, unlike
+in that they are executed in the current environment. However, unlike
 .Li .-scripts ,
 shell arguments (i.e., positional parameters $1, $2, etc.) are never visible
 inside them. When the shell is determining the location of a command, functions
-are searched after special built-in commands, and before regular and
+are searched after special built-in commands, before regular and
 non-regular built-ins, and before the
 .Ev PATH
 is searched.
@@ -2121,7 +2132,7 @@ returns.
 .Ss POSIX mode
 The shell is intended to be
 .Tn POSIX
-compliant, however, in some cases,
+compliant; however, in some cases,
 .Tn POSIX
 behaviour is contrary either to the original Korn shell behaviour or to user
 convenience. How the shell behaves in these cases is determined by the state
@@ -2131,7 +2142,7 @@ option
 .Pq Ic set Fl o Ic posix .
 If it is on, the
 .Tn POSIX
-behaviour is followed, otherwise it is not. The
+behaviour is followed; otherwise, it is not. The
 .Ic posix
 option is set automatically when the shell starts up if the environment
 contains the
@@ -2139,7 +2150,7 @@ contains the
 parameter. (The shell can also be compiled so that it is in
 .Tn POSIX
 mode by
-default, however this is usually not desirable).
+default; however, this is usually not desirable).
 .Pp
 The following is a list of things that are affected by the state of the
 .Ic posix
@@ -2215,7 +2226,7 @@ mode, brace expansion is enabled. Note that
 .Ev POSIXLY_CORRECT
 parameter) automatically turns the
 .Ic braceexpand
-option off, however, it can be explicitly turned on later.
+option off; however, it can be explicitly turned on later.
 .It
 .Ic set \&- .
 In
@@ -2317,8 +2328,8 @@ test may be left out and defaults to 1).
 .El
 .Ss Command execution
 After evaluation of command-line arguments, redirections and parameter
-assignments, the type of command is determined; a special built-in, a function,
-a regular built-in, or the name of a file to execute found using the
+assignments, the type of command is determined:  a special built-in, a
+function, a regular built-in, or the name of a file to execute found using the
 .Ev PATH
 parameter. The checks are made in the above order. Special built-in commands
 differ from other commands in that the
@@ -2555,7 +2566,7 @@ exit, and command assignments are not permanent). If the
 .Fl p
 option is given, a default search path is used instead of the current value of
 .Ev PATH
-(the actual value of the default path is system dependent; on
+(the actual value of the default path is system dependent: on
 .Tn POSIX Ns ish
 systems,
 it is the value returned by
@@ -2619,7 +2630,8 @@ string which the shell then parses and executes in the current environment.
 .Xc
 The command is executed without forking, replacing the shell process.
 .Pp
-If no arguments are given, and I/O redirection is permanent and the shell is
+If no command is given except for I/O redirection, the I/O redirection is
+permanent and the shell is
 not replaced. Any file descriptors greater than 2 which are opened or
 .Xr dup 2 Ns 'd
 in this way are not made available to other executed commands (i.e., commands
@@ -2702,10 +2714,10 @@ parameters, if no arguments are given) and to check for legal options.
 contains the option letters that
 .Ic getopts
 is to recognize. If a letter is followed by a colon, the option is expected to
-ahve an argument. Options that do not take arguments may be grouped in a single
+have an argument. Options that do not take arguments may be grouped in a single
 argument. If an option takes an argument and the option character is not the
 last character of the argument it is found in, the remainder of the argument is
-taken to be the option's argument, otherwise, the next argument is the option's
+taken to be the option's argument; otherwise, the next argument is the option's
 argument.
 .Pp
 Each time
@@ -2810,7 +2822,7 @@ is syntactic sugar for
 .Li | Fl R No [-en] Oc [argument\ ...]
 .Xc
 .Ic print
-prints its arguments on the standard output, separated by spaces, and
+prints its arguments on the standard output, separated by spaces and
 terminated with a newline. The
 .Fl n
 option suppresses the newline. By default, certain C escapes are translated.
@@ -3190,7 +3202,7 @@ defaults to 1.
 .Ic test
 evaluates the
 .Ar expression
-and returns zero status if true, 1 status if fase, and greater than 1 if there
+and returns zero status if true, 1 status if false, or greater than 1 if there
 was an error. It is normally used as the condition command of
 .Ic if
 and
@@ -3254,7 +3266,7 @@ mode has sticky bit set.
 is not empty.
 .It Fl O Ar file
 .Ar file Ns 's
-owned is the shell's effective user ID.
+owner is the shell's effective user ID.
 .It Fl G Ar file
 .Ar file Ns 's
 group is the shell's effective group ID.
@@ -3347,11 +3359,14 @@ increasing order of precedence):
 .Pp
 .Bl -tag -width "expr -o expr" -compact
 .It Ar expr Fl o Ar expr
-Logical OR.
+Logical
+.Tn OR .
 .It Ar expr Fl a Ar expr
-Logical AND.
+Logical
+.Tn AND .
 .It Ic \&! Ar expr
-Logical NOT.
+Logical
+.Tn NOT .
 .It Ic \&( Ar expr Ic \&)
 Grouping.
 .El
@@ -3664,7 +3679,7 @@ Display or set the file permission creation mask, or umask (see
 .Xr umask 2 ) .
 If the
 .Fl S
-option is used, the mask displayed or set is symbolic, otherwise it is an
+option is used, the mask displayed or set is symbolic; otherwise, it is an
 octal number.
 .Pp
 Symbolic masks are like those used by
@@ -3997,7 +4012,7 @@ words, leaving the cursor past the end of the last word.
 .Pp
 If the current line does not being with a comment character, one is added at
 the beginning of the line and the line is entered (as if return had been
-pressed), otherwise the existing comment characters are removed and the cursor
+pressed); otherwise, the existing comment characters are removed and the cursor
 is placed at the beginning of the line.
 .It Ic complete ^[^[
 Automatically completes as much as is unique of the command name or the file
@@ -4230,7 +4245,7 @@ Like vi, there are two modes --
 mode and
 .Dq command
 mode. In insert mode, most characters are simply put in the buffer at the
-current cursor position as they are typed, however, some characters are
+current cursor position as they are typed; however, some characters are
 treated specially. In particular, the following characters are taken from
 current tty settings (see
 .Xr tty 1 )
diff --git a/bin/ksh/sh.1 b/bin/ksh/sh.1
index f1367d84f75..db0d257db0f 100644
--- a/bin/ksh/sh.1
+++ b/bin/ksh/sh.1
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: sh.1,v 1.12 1999/06/03 09:50:32 aaron Exp $
+.\"	$OpenBSD: sh.1,v 1.13 1999/06/14 03:13:59 pjanzen Exp $
 .\"
 .\" Copyright (c) 1980, 1990, 1993
 .\"     The Regents of the University of California.  All rights reserved.
@@ -78,14 +78,14 @@ If neither the
 .Fl c
 nor the
 .Fl s
-options are specified, the first non-option argument specifies the name
+option is specified, the first non-option argument specifies the name
 of a file the shell reads commands from. If there are no non-option
 arguments, the shell reads commands from the standard input. The name of
 the shell (i.e., the contents of $0) is determined as follows: if the
 .Fl c
 option is used and there is a non-option argument, it is used as the name;
 if commands are being read from a file, the file is used as the name;
-otherwise the name the shell was called with (i.e., argv[0]) is used.
+otherwise, the name the shell was called with (i.e., argv[0]) is used.
 .Pp
 A shell is
 .Dq interactive
@@ -94,10 +94,10 @@ if the
 option is used or if both standard input and standard error are attached
 to a tty. An interactive shell has job control enabled (if available),
 ignores the
-.Dv INT ,
-.Dv QUIT ,
+.Dv SIGINT ,
+.Dv SIGQUIT ,
 and
-.Dv TERM
+.Dv SIGTERM
 signals, and prints prompts before reading input (see
 .Ev PS1
 and
@@ -225,7 +225,7 @@ and
 .Ql \&)
 .Pc .
 Aside from delimiting words, spaces and tabs are ignored, while newlines
-usually delimit commands. The meta-charcters are used in building the
+usually delimit commands. The meta-characters are used in building the
 following tokens:
 .Ql < ,
 .Ql <& ,
@@ -284,7 +284,7 @@ the
 .Ql #
 up to the nearest newline is ignored;
 .Ql $
-is used to introduce parameter, command and arithmetic substitutions (see
+is used to introduce parameter, command, and arithmetic substitutions (see
 .Sx Substitution
 below);
 .Ql `
@@ -400,9 +400,9 @@ does keep track of the status of asynchronous commands, see
 .Sx Job control
 below). When an asynchronous command is started when job control is disabled
 (i.e., in most scripts), the command is started with signals
-.Dv INT
+.Dv SIGINT
 and
-.Dv QUIT
+.Dv SIGQUIT
 ignored and with input redirected from
 .Pa /dev/null
 (however, redirections specified in the asynchronous command have precedence).
@@ -442,7 +442,7 @@ control structure.
 .Pp
 In the following compound command descriptions, command lists (denoted as
 .Em list )
-that are followed by reserved words must end with a semi-colon, a newline or
+that are followed by reserved words must end with a semicolon, a newline, or
 a (syntactically correct) reserved word. For example,
 .Pp
 .Bl -inset -indent -compact
@@ -497,7 +497,7 @@ and
 .Ql /
 are dropped. Note that any unquoted space before and after a pattern is
 stripped; any space with a pattern must be quoted. Both the word and the
-patterns are subject to parameter, command and arithmetic substitution as
+patterns are subject to parameter, command, and arithmetic substitution, as
 well as tilde substitution. For historical reasons, open and close braces
 may be used instead of
 .Ic in
@@ -525,7 +525,7 @@ is set to the word and
 is executed. If
 .Ic in
 is not used to specify a word list, the positional parameters ($1, $2, etc.)
-are used instead. For historical reasons, open and clase braces may be used
+are used instead. For historical reasons, open and close braces may be used
 instead of
 .Ic do
 and
@@ -551,7 +551,7 @@ If the exit status of the first
 .Ar list
 is zero, the second
 .Ar list
-is executed; otherwise the
+is executed; otherwise, the
 .Ar list
 following the
 .Ic elif ,
@@ -700,7 +700,7 @@ and
 .Ss Substitution
 The first step the shell takes in executing a simple-command is to perform
 substitutions on the words of the command. There are three kinds of
-substitution: parameter, command and arithmetic. Parameter substitutions,
+substitution: parameter, command, and arithmetic. Parameter substitutions,
 which are described in detail in the next section, take the form
 .Ic $name
 or
@@ -719,7 +719,7 @@ the current value of the
 parameter. The
 .Ev IFS
 parameter specifies a list of characters which are used to break a string up
-into several words; any characters from the set space, tab and newline that
+into several words; any characters from the set space, tab, and newline that
 appear in the
 .Ev IFS
 characters are called
@@ -729,7 +729,7 @@ Sequences of one or more
 whitespace characters, in combination with zero or no
 .Pf non- Ev IFS
 whitespace
-characters delimit a field. As a special case, leading and trailing
+characters, delimit a field. As a special case, leading and trailing
 .Ev IFS
 whitespace is stripped (i.e., no leading or trailing empty field is created by
 it); leading or trailing
@@ -753,10 +753,10 @@ Note that if the
 parameter is set to the
 .Dv NULL
 string, no field splitting is done; if the parameter is unset, the default
-value of space, tab and newline is used.
+value of space, tab, and newline is used.
 .Pp
 Also, note that the field splitting applies only to the immediate result of
-the substituion. Using the previous example, the substitution for $VAR:E
+the substitution. Using the previous example, the substitution for $VAR:E
 results in the fields:
 .Dq A ,
 .Dq B ,
@@ -771,7 +771,7 @@ and
 .Dq E .
 This behavior is POSIX compliant, but incompatible with some other shell
 implementations which do field splitting on the word which contained the
-substituion or use
+substitution or use
 .Dv IFS
 as a general whitespace delimiter.
 .Pp
@@ -783,7 +783,7 @@ command, which is run in a subshell. For
 .Ic $( Ns Ar command Ns Ic )
 substitutions, normal quoting rules are used when
 .Ar command
-is parsed, however, for the
+is parsed; however, for the
 .Ic ` Ns Ar command Ns Ic `
 form, a
 .Ql \e
@@ -808,7 +808,7 @@ but it is carried out more efficiently because no process is started).
 .Sy Note:
 .Ic $( Ns Ar command Ns Ic \&)
 expressions are currently parsed by finding the matching parenthesis,
-regardless of quoting. This will hopefully be fixed soon.
+regardless of quoting. This should be fixed soon.
 .Pp
 Arithmetic substitutions are replaced by the value of the specified expression.
 For example, the command
@@ -910,7 +910,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise
+it is substituted; otherwise,
 .Ar word
 is substituted.
 .It Xo Ic ${ Ns Ar name Ns
@@ -921,7 +921,7 @@ If
 is set and not
 .Dv NULL ,
 .Ar word
-is substituted, otherwise nothing is substituted.
+is substituted; otherwise, nothing is substituted.
 .It Xo Ic ${ Ns Ar name Ns
 .Ic \&:\&= Ns Ar word Ns Ic \&}
 .Xc
@@ -929,7 +929,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise it is assigned
+it is substituted; otherwise, it is assigned
 .Ar word
 and the resulting value of
 .Ar name
@@ -941,7 +941,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise
+it is substituted; otherwise,
 .Ar word
 is printed on standard error (preceded by
 .Ar name Ns No \&: )
@@ -953,7 +953,7 @@ is used instead.
 .Pp
 In the above modifiers, the
 .Ql \&:
-can be omitted, in which case the conditions only depand on
+can be omitted, in which case the conditions only depend on
 .Ar name
 being set (as opposed to set and not
 .Dv NULL ) .
@@ -991,8 +991,8 @@ matches the beginning of the value of parameter
 .Ar name ,
 the matched text is deleted from the result of substitution. A single
 .Ql #
-results in the shortest match, two
-of them results in the longest match.
+results in the shortest match, and two
+of them result in the longest match.
 .Sm off
 .It Xo
 .Ic ${ Ar name Ic \&% Ar pattern Ic \&},\ \&
@@ -1013,7 +1013,9 @@ have been started, the parameter is not set.
 .It Ev \&#
 The number of positional parameters (i.e., $1, $2, etc.).
 .It Ev \&$
-The process ID of the shell, or the PID of the original shell if it is a
+The process ID of the shell, or the
+.Tn PID
+of the original shell if it is a
 subshell.
 .It Ev \&-
 The concatenation of the current single letter options (see
@@ -1180,7 +1182,7 @@ below.
 .It Ev PPID
 The process ID of the shell's parent (read-only).
 .It Ev PS1
-The prompt is printed verbatim (i.e., no substituions are done).
+The prompt is printed verbatim (i.e., no substitutions are done).
 Default is
 .Dq \&$\ \&
 for non-root users,
@@ -1319,14 +1321,16 @@ option is set, any directories that result from file name generation are marked
 with a trailing
 .Ql / .
 .Pp
-The POSIX character classes (i.e.,
+The
+.Tn POSIX
+character classes (i.e.,
 .Ic \&[\&: Ns Ar class-name Ns Ic \&:\&]
 inside a
 .Ic \&[ Ns No .. Ns Ic \&]
 expression) are not yet implemented.
 .Ss Input/output redirection
-When a command is executed, its standard input, standard output and standard
-error (file descriptors 0, 1 and 2, respectively) are normally inherited from
+When a command is executed, its standard input, standard output, and standard
+error (file descriptors 0, 1, and 2, respectively) are normally inherited from
 the shell. Three exceptions to this are commands in pipelines, for which
 standard input and/or standard output are those set up by the pipeline,
 asynchronous commands created when job control is disabled, for which standard
@@ -1341,7 +1345,7 @@ If
 .Ar file
 does not exist, it is created; if it does exist, is a regular file and the
 .Ic noclobber
-option is set, an error occurs, otherwise the file is truncated. Note that this
+option is set, an error occurs; otherwise, the file is truncated. Note that this
 means the command
 .Ic cmd < foo > foo
 will open
@@ -1375,7 +1379,7 @@ except the file is opened for reading and writing.
 .It Ic \&<\&< Ar marker
 After reading the command line containing this kind of redirection (called a
 .Dq here document ) ,
-the shell copies lines from the command source into a termpoary file until a
+the shell copies lines from the command source into a temporary file until a
 line matching
 .Ar marker
 is read. When the command is executed, standard input is redirected from the
@@ -1383,7 +1387,7 @@ temporary file. If
 .Ar marker
 contains no quoted characters, the contents of the temporary file are processed
 as if enclosed in double quotes each time the command is executed, so
-parameter, command and arithmetic substitutions are performed, along with
+parameter, command, and arithmetic substitutions are performed, along with
 backslash
 .Pq Sq \e
 escapes for
@@ -1417,8 +1421,8 @@ except the operation is done on standard output.
 .Pp
 In any of the above redirections, the file descriptor that is redirected (i.e.,
 standard input or standard output) can be explicitly given by preceding the
-redirection with a single digit. Parameter, command and arithmetic
-substitutions, tilde substitutions and (if the shell is interative)
+redirection with a single digit. Parameter, command, and arithmetic
+substitutions, tilde substitutions, and (if the shell is interactive)
 file name generation are all performed on the
 .Ar file ,
 .Ar marker
@@ -1429,8 +1433,8 @@ generation are only used if a single file is matched; if multiple files match,
 the word with the expanded file name generation characters is used. Note
 that in restricted shells, redirections which can create files cannot be used.
 .Pp
-For simple-commands, redirections may appear anywhere in the command, for
-compund-commands
+For simple-commands, redirections may appear anywhere in the command; for
+compound-commands
 .Po
 .Ic if
 statements, etc.
@@ -1522,9 +1526,12 @@ Result is the argument (included for completeness).
 .It unary Ic \&-
 Negation.
 .It Ic \&!
-Logical NOT; the result is 1 if argument is zero, 0 if not.
+Logical
+.Tn NOT ;
+the result is 1 if argument is zero, 0 if not.
 .It Ic \&~
-Arithmetic (bit-wise) NOT.
+Arithmetic (bit-wise)
+.Tn NOT .
 .It Ic \&+\&+
 Increment; must be applied to a parameter (not a literal or other expression).
 The parameter is incremented by 1. When used as a prefix operator, the result
@@ -1555,17 +1562,25 @@ is the same as
 .Ao Ar expr Ac
 .Ic \&) .
 .It Ic \&|\&|
-Logical OR; the result is 1 if either argument is non-zero, 0 if not. The right
+Logical
+.Tn OR ;
+the result is 1 if either argument is non-zero, 0 if not. The right
 argument is evaluated only if the left argument is zero.
 .It Ic \&&\&&
-Logical AND; the result is 1 if both arguments are non-zero, 0 if not. The
+Logical
+.Tn AND ;
+the result is 1 if both arguments are non-zero, 0 if not. The
 right argument is evaluated only if the left argument is non-zero.
 .It Ic \&|
-Arithmetic (bit-wise) OR.
+Arithmetic (bit-wise)
+.Tn OR .
 .It Ic ^
-Arithmetic (bit-wise) XOR (exclusive-OR).
+Arithmetic (bit-wise)
+.Tn XOR
+(exclusive-OR).
 .It Ic \&&
-Arithmetic (bit-wise) AND.
+Arithmetic (bit-wise)
+.Tn AND .
 .It Ic ==
 Equal; the result is 1 if both arguments are equal, 0 if not.
 .It Ic \&!=
@@ -1602,11 +1617,11 @@ syntax or the Bourne/POSIX shell
 .Fn name
 syntax (see below for the difference between the two forms). Functions are like
 .Li .-scripts
-in that they are executed in the current environment. Howeer, unlike
+in that they are executed in the current environment. However, unlike
 .Li .-scripts ,
 shell arguments (i.e., positional parameters $1, $2, etc.) are never visible
 inside them. When the shell is determining the location of a command, functions
-are searched after special built-in commands, and before regular and
+are searched after special built-in commands, before regular and
 non-regular built-ins, and before the
 .Ev PATH
 is searched.
@@ -1701,20 +1716,26 @@ returns.
 .El
 .El
 .Ss POSIX mode
-The shell is intended to be POSIX compliant, however, in some cases, POSIX
+The shell is intended to be
+.Tn POSIX
+compliant; however, in some cases,
+.Tn POSIX
 behaviour is contrary either to the original Korn shell behaviour or to user
 convenience. How the shell behaves in these cases is determined by the state
 of the
 .Ic posix
 option
 .Pq Ic set Fl o Ic posix .
-If it is on, the POSIX behaviour is followed, otherwise it is not. The
+If it is on, the
+.Tn POSIX
+behaviour is followed; otherwise, it is not. The
 .Ic posix
 option is set automatically when the shell starts up if the environment
 contains the
 .Dv POSIXLY_CORRECT
-parameter. (The shell can also be compiled so that it is in POSIX mode by
-default, however this is usually not desirable).
+parameter. (The shell can also be compiled so that it is in
+.Tn POSIX
+mode by default; however, this is usually not desirable).
 .Pp
 The following is a list of things that are affected by the state of the
 .Ic posix
@@ -1733,22 +1754,34 @@ Occurrences of
 .Ic \e\&"
 inside double quoted
 .Ic `\&.\&.`
-command substitutions. In POSIX mode, the
+command substitutions. In
+.Tn POSIX
+mode, the
 .Ic \e\&"
-is interpreted when the command is interpreted; in non-POSIX mode, the
+is interpreted when the command is interpreted; in
+.Pf non- Tn POSIX
+mode, the
 backslash is stripped before the command substitution is interpreted. For
 example,
 .Ic echo \&"`echo \e\&"hi\e\&"`\&"
 produces
 .Dq \&"hi\&"
-in POSIX mode,
+in
+.Tn POSIX
+mode,
 .Dq hi
-in non-POSIX mode. To avoid problems, use the
+in
+.Pf non- Tn POSIX
+mode. To avoid problems, use the
 .Ic $(...)
 form of command substitution.
 .It
 .Ic kill -l
-output. In POSIX mode, signal names are listed one per line; in non-POSIX mode,
+output. In
+.Tn POSIX
+mode, signal names are listed one per line; in
+.Pf non- Tn POSIX
+mode,
 signal numbers, names and descriptions are printed in columns. In future, a new
 option
 .Po Fl v
@@ -1757,43 +1790,65 @@ option
 will be added to distinguish the two behaviours.
 .It
 .Ic fg
-exit status. In POSIX mode, the exit status is 0 if no errors occur; in
-non-POSIX mode, the exit status is that of the last foregrounded job.
+exit status. In
+.Tn POSIX
+mode, the exit status is 0 if no errors occur; in
+.Pf non- Tn POSIX
+mode, the exit status is that of the last foregrounded job.
 .It
 .Ic getopts .
-In POSIX mode, options must start with a
+In
+.Tn POSIX
+mode, options must start with a
 .Ql - ;
-in non-POSIX mode, options can start with either
+in
+.Pf non- Tn POSIX
+mode, options can start with either
 .Ql -
 or
 .Ql + .
 .It
-Brace expansion (also known as alternation). In POSIX mode, brace expansion is
-disabled; in non-POSIX mode, brace expansion is enabled. Note that
+Brace expansion (also known as alternation). In
+.Tn POSIX
+mode, brace expansion is
+disabled; in
+.Pf non- Tn POSIX
+mode, brace expansion is enabled. Note that
 .Ic set Fl o Ic posix
 (or setting the
 .Ev POSIXLY_CORRECT
 parameter) automatically turns the
 .Ic braceexpand
-option off, however, it can be explicitly turned on later.
+option off, although it can be explicitly turned on later.
 .It
 .Ic set \&- .
-In POSIX mode, this does not clear the
+In
+.Tn POSIX
+mode, this does not clear the
 .Ic verbose
 or
 .Ic xtrace
-options; in non-POSIX mode, it does.
+options; in
+.Pf non- Tn POSIX
+mode, it does.
 .It
 .Ic set
-exit status. In POSIX mode, the exit status of
+exit status. In
+.Tn POSIX
+mode, the exit status of
 .Ic set
-is 0 if there are no errors; in non-POSIX mode, the exit status is that of any
+is 0 if there are no errors; in
+.Pf non- Tn POSIX
+mode, the exit status is that of any
 command substitutions performed in generating the
 .Ic set
 command. For example,
 .Ic set \&-\&- `false`; echo $?
-prints 0 in POSIX mode, 1 in non-POSIX mode. This construct is used in most
-shell scripts that use the old
+prints 0 in
+.Tn POSIX
+mode, 1 in
+.Pf non- Tn POSIX
+mode. This construct is used in most shell scripts that use the old
 .Xr getopt 1
 command.
 .It
@@ -1803,16 +1858,30 @@ Argument expansion of
 .Ic readonly ,
 and
 .Ic typeset
-commands. In POSIX mode, normal argument expansion is done; in non-POSIX mode,
+commands. In
+.Tn POSIX
+mode, normal argument expansion is done; in
+.Pf non- Tn POSIX
+mode,
 field splitting, file globbing, brace expansion, and (normal) tilde expansion
 are turned off, while assignment tilde expansion is turned on.
 .It
-Signal specification. In POSIX mode, signals can be specified as digits, only
-if signal numbers match POSIX values (i.e., HUP=1, INT=2, QUIT=3, ABRT=6,
-KILL=9, ALRM=14, and TERM=15); in non-POSIX mode, signals can always be digits.
+Signal specification. In
+.Tn POSIX
+mode, signals can be specified as digits, only
+if signal numbers match
+.Tn POSIX
+values (i.e., HUP=1, INT=2, QUIT=3, ABRT=6,
+KILL=9, ALRM=14, and TERM=15); in
+.Pf non- Tn POSIX
+mode, signals can always be digits.
 .It
-Alias expansion. In POSIX mode, alias expansion is only carried out when
-reading command words; in non-POSIX mode, alias expansion is carried out on any
+Alias expansion. In
+.Tn POSIX
+mode, alias expansion is only carried out when
+reading command words; in
+.Pf non- Tn POSIX
+mode, alias expansion is carried out on any
 word following an alias that ended in a space. For example, the following
 .Ic for
 loop
@@ -1826,16 +1895,23 @@ loop
 .Pp
 uses parameter
 .Ic i
-in POSIX mode,
+in
+.Tn POSIX
+mode,
 .Ic j
-in non-POSIX mode.
+in
+.Pf non- Tn POSIX
+mode.
 .It
-Test. In POSIX mode, the expression
+Test. In
+.Tn POSIX
+mode, the expression
 .Ql Fl t
 (preceded by some number of
 .Ql Ic \&!
-arguments) is always true as it is a non-zero length string; in non-POSIX mode,
-it tests if file descriptor 1 is a tty (i.e., the
+arguments) is always true as it is a non-zero length string; in
+.Pf non- Tn POSIX
+mode, it tests if file descriptor 1 is a tty (i.e., the
 .Ar fd
 argument to the
 .Fl t
@@ -1843,8 +1919,8 @@ test may be left out and defaults to 1).
 .El
 .Ss Command execution
 After evaluation of command-line arguments, redirections and parameter
-assignments, the type of command is determined; a special built-in, a function,
-a regular built-in, or the name of a file to execute found using the
+assignments, the type of command is determined:  a special built-in, a
+function, a regular built-in, or the name of a file to execute found using the
 .Ev PATH
 parameter. The checks are made in the above order. Special built-in commands
 differ from other commands in that the
@@ -1863,7 +1939,9 @@ different only in that the
 .Ev PATH
 parameter is not used to find them.
 .Pp
-The original ksh and POSIX differ somewhat in which commands are considered
+The original ksh and
+.Tn POSIX
+differ somewhat in which commands are considered
 special or regular:
 .Pp
 POSIX special commands
@@ -1894,7 +1972,9 @@ Additional ksh regular commands
 .Ic pwd , test , ulimit , whence
 .Pp
 In the future, the additional ksh special and regular commands may be treated
-differently from the POSIX special and regular commands.
+differently from the
+.Tn POSIX
+special and regular commands.
 .Pp
 Once the type of the command has been determined, any command-line parameter
 assignments are performed and exported for the duration of the command.
@@ -2054,7 +2134,7 @@ directory.
 .Ar cmd Op Ar arg1 ...
 .Xc
 .Ar cmd
-is executed exactly as if the
+is executed exactly as if
 .Ic command
 had not been specified, with two exceptions. First,
 .Ar cmd
@@ -2064,8 +2144,8 @@ exit, and command assignments are not permanent). If the
 .Fl p
 option is given, a default search path is used instead of the current value of
 .Ev PATH
-(the actual value of the default path is system dependent; on POSIXish systems,
-it is the value returned by
+(the actual value of the default path is system dependent:  on POSIXish
+systems, it is the value returned by
 .Ic getconf CS_PATH ) .
 .It Ic continue Op Ar level
 Jumps to the beginning of the
@@ -2106,7 +2186,8 @@ string which the shell then parses and executes in the current environment.
 .Xc
 The command is executed without forking, replacing the shell process.
 .Pp
-If no arguments are given, and I/O redirection is permanent and the shell is
+If no command is given except for I/O redirection, the I/O redirection is
+permanent and the shell is
 not replaced. Any file descriptors which are opened or
 .Xr dup 2 Ns No 'd
 in this way are made available to other executed commands (note that the Korn
@@ -2164,10 +2245,10 @@ parameters, if no arguments are given) and to check for legal options.
 contains the option letters that
 .Ic getopts
 is to recognize. If a letter is followed by a colon, the option is expected to
-ahve an argument. Options that do not take arguments may be grouped in a single
+have an argument. Options that do not take arguments may be grouped in a single
 argument. If an option takes an argument and the option character is not the
 last character of the argument it is found in, the remainder of the argument is
-taken to be the option's argument, otherwise, the next argument is the option's
+taken to be the option's argument; otherwise, the next argument is the option's
 argument.
 .Pp
 Each time
@@ -2262,7 +2343,7 @@ a short description of them are printed.
 .Li | Fl R No [-en] Oc [argument\ ...]
 .Xc
 .Ic print
-prints its arguments on the standard output, separated by spaces, and
+prints its arguments on the standard output, separated by spaces and
 terminated with a newline. The
 .Fl n
 option suppresses the newline. By default, certain C escapes are translated.
@@ -2569,7 +2650,9 @@ and
 .Ic pwd
 commands above for more details.
 .It Ic posix
-Enable POSIX mode. See
+Enable
+.Tn POSIX
+mode. See
 .Sx POSIX mode
 above.
 .It Ic vi
@@ -2630,7 +2713,7 @@ defaults to 1.
 .Ic test
 evaluates the
 .Ar expression
-and returns zero status if true, 1 status if fase, and greater than 1 if there
+and returns zero status if true, 1 status if false, or greater than 1 if there
 was an error. It is normally used as the condition command of
 .Ic if
 and
@@ -2694,7 +2777,7 @@ mode has sticky bit set.
 is not empty.
 .It Fl O Ar file
 .Ar file Ns 's
-owned is the shell's effective user ID.
+owner is the shell's effective user ID.
 .It Fl G Ar file
 .Ar file Ns 's
 group is the shell's effective group ID.
@@ -2749,7 +2832,9 @@ is a tty device. If the
 option is not set,
 .Ar fd
 may be left out, in which case it is taken to be 1 (the behaviour differs due
-to the special POSIX rules described below).
+to the special
+.Tn POSIX
+rules described below).
 .It Ar string
 .Ar string
 is not empty.
@@ -2783,11 +2868,14 @@ increasing order of precedence):
 .Pp
 .Bl -tag -width "expr -o expr" -compact
 .It Ar expr Fl o Ar expr
-Logical OR.
+Logical
+.Tn OR .
 .It Ar expr Fl a Ar expr
-Logical AND.
+Logical
+.Tn AND .
 .It Ic \&! Ar expr
-Logical NOT.
+Logical
+.Tn NOT .
 .It Ic \&( Ar expr Ic \&)
 Grouping.
 .El
@@ -2804,7 +2892,9 @@ test). For example,
 .Ic \&[ -w /dev/fd/2 \&]
 tests if file descriptor 2 is writable.
 .Pp
-Note that some special rules are applied (courtesy of POSIX) if the number of
+Note that some special rules are applied (courtesy of
+.Tn POSIX )
+if the number of
 arguments to
 .Ic test
 or
@@ -3097,7 +3187,7 @@ Display or set the file permission creation mask, or umask (see
 .Xr umask 2 ) .
 If the
 .Fl S
-option is used, the mask displayed or set is symbolic, otherwise it is an
+option is used, the mask displayed or set is symbolic; otherwise, it is an
 octal number.
 .Pp
 Symbolic masks are like those used by
@@ -3377,7 +3467,9 @@ features whose syntax or semantics are incompatible with a traditional Bourne
 shell disabled. Since this leaves some
 .Nm ksh
 extensions exposed, caution should be used where backwards compatibility with
-traditional Bourne or POSIX compliant shells is an issue.
+traditional Bourne or
+.Tn POSIX
+compliant shells is an issue.
 .Sh BUGS
 Any bugs in
 .Nm pdksh
diff --git a/bin/ksh/sh.1tbl b/bin/ksh/sh.1tbl
index c0f5b8efae9..e13435e1792 100644
--- a/bin/ksh/sh.1tbl
+++ b/bin/ksh/sh.1tbl
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: sh.1tbl,v 1.12 1999/06/03 09:50:32 aaron Exp $
+.\"	$OpenBSD: sh.1tbl,v 1.13 1999/06/14 03:13:59 pjanzen Exp $
 .\"
 .\" Copyright (c) 1980, 1990, 1993
 .\"     The Regents of the University of California.  All rights reserved.
@@ -78,14 +78,14 @@ If neither the
 .Fl c
 nor the
 .Fl s
-options are specified, the first non-option argument specifies the name
+option is specified, the first non-option argument specifies the name
 of a file the shell reads commands from. If there are no non-option
 arguments, the shell reads commands from the standard input. The name of
 the shell (i.e., the contents of $0) is determined as follows: if the
 .Fl c
 option is used and there is a non-option argument, it is used as the name;
 if commands are being read from a file, the file is used as the name;
-otherwise the name the shell was called with (i.e., argv[0]) is used.
+otherwise, the name the shell was called with (i.e., argv[0]) is used.
 .Pp
 A shell is
 .Dq interactive
@@ -94,10 +94,10 @@ if the
 option is used or if both standard input and standard error are attached
 to a tty. An interactive shell has job control enabled (if available),
 ignores the
-.Dv INT ,
-.Dv QUIT ,
+.Dv SIGINT ,
+.Dv SIGQUIT ,
 and
-.Dv TERM
+.Dv SIGTERM
 signals, and prints prompts before reading input (see
 .Ev PS1
 and
@@ -225,7 +225,7 @@ and
 .Ql \&)
 .Pc .
 Aside from delimiting words, spaces and tabs are ignored, while newlines
-usually delimit commands. The meta-charcters are used in building the
+usually delimit commands. The meta-characters are used in building the
 following tokens:
 .Ql < ,
 .Ql <& ,
@@ -284,7 +284,7 @@ the
 .Ql #
 up to the nearest newline is ignored;
 .Ql $
-is used to introduce parameter, command and arithmetic substitutions (see
+is used to introduce parameter, command, and arithmetic substitutions (see
 .Sx Substitution
 below);
 .Ql `
@@ -400,9 +400,9 @@ does keep track of the status of asynchronous commands, see
 .Sx Job control
 below). When an asynchronous command is started when job control is disabled
 (i.e., in most scripts), the command is started with signals
-.Dv INT
+.Dv SIGINT
 and
-.Dv QUIT
+.Dv SIGQUIT
 ignored and with input redirected from
 .Pa /dev/null
 (however, redirections specified in the asynchronous command have precedence).
@@ -442,7 +442,7 @@ control structure.
 .Pp
 In the following compound command descriptions, command lists (denoted as
 .Em list )
-that are followed by reserved words must end with a semi-colon, a newline or
+that are followed by reserved words must end with a semicolon, a newline, or
 a (syntactically correct) reserved word. For example,
 .Pp
 .Bl -inset -indent -compact
@@ -497,7 +497,7 @@ and
 .Ql /
 are dropped. Note that any unquoted space before and after a pattern is
 stripped; any space with a pattern must be quoted. Both the word and the
-patterns are subject to parameter, command and arithmetic substitution as
+patterns are subject to parameter, command, and arithmetic substitution, as
 well as tilde substitution. For historical reasons, open and close braces
 may be used instead of
 .Ic in
@@ -525,7 +525,7 @@ is set to the word and
 is executed. If
 .Ic in
 is not used to specify a word list, the positional parameters ($1, $2, etc.)
-are used instead. For historical reasons, open and clase braces may be used
+are used instead. For historical reasons, open and close braces may be used
 instead of
 .Ic do
 and
@@ -551,7 +551,7 @@ If the exit status of the first
 .Ar list
 is zero, the second
 .Ar list
-is executed; otherwise the
+is executed; otherwise, the
 .Ar list
 following the
 .Ic elif ,
@@ -700,7 +700,7 @@ and
 .Ss Substitution
 The first step the shell takes in executing a simple-command is to perform
 substitutions on the words of the command. There are three kinds of
-substitution: parameter, command and arithmetic. Parameter substitutions,
+substitution: parameter, command, and arithmetic. Parameter substitutions,
 which are described in detail in the next section, take the form
 .Ic $name
 or
@@ -719,7 +719,7 @@ the current value of the
 parameter. The
 .Ev IFS
 parameter specifies a list of characters which are used to break a string up
-into several words; any characters from the set space, tab and newline that
+into several words; any characters from the set space, tab, and newline that
 appear in the
 .Ev IFS
 characters are called
@@ -729,7 +729,7 @@ Sequences of one or more
 whitespace characters, in combination with zero or no
 .Pf non- Ev IFS
 whitespace
-characters delimit a field. As a special case, leading and trailing
+characters, delimit a field. As a special case, leading and trailing
 .Ev IFS
 whitespace is stripped (i.e., no leading or trailing empty field is created by
 it); leading or trailing
@@ -753,10 +753,10 @@ Note that if the
 parameter is set to the
 .Dv NULL
 string, no field splitting is done; if the parameter is unset, the default
-value of space, tab and newline is used.
+value of space, tab, and newline is used.
 .Pp
 Also, note that the field splitting applies only to the immediate result of
-the substituion. Using the previous example, the substitution for $VAR:E
+the substitution. Using the previous example, the substitution for $VAR:E
 results in the fields:
 .Dq A ,
 .Dq B ,
@@ -771,7 +771,7 @@ and
 .Dq E .
 This behavior is POSIX compliant, but incompatible with some other shell
 implementations which do field splitting on the word which contained the
-substituion or use
+substitution or use
 .Dv IFS
 as a general whitespace delimiter.
 .Pp
@@ -783,7 +783,7 @@ command, which is run in a subshell. For
 .Ic $( Ns Ar command Ns Ic )
 substitutions, normal quoting rules are used when
 .Ar command
-is parsed, however, for the
+is parsed; however, for the
 .Ic ` Ns Ar command Ns Ic `
 form, a
 .Ql \e
@@ -808,7 +808,7 @@ but it is carried out more efficiently because no process is started).
 .Sy Note:
 .Ic $( Ns Ar command Ns Ic \&)
 expressions are currently parsed by finding the matching parenthesis,
-regardless of quoting. This will hopefully be fixed soon.
+regardless of quoting. This should be fixed soon.
 .Pp
 Arithmetic substitutions are replaced by the value of the specified expression.
 For example, the command
@@ -910,7 +910,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise
+it is substituted; otherwise,
 .Ar word
 is substituted.
 .It Xo Ic ${ Ns Ar name Ns
@@ -921,7 +921,7 @@ If
 is set and not
 .Dv NULL ,
 .Ar word
-is substituted, otherwise nothing is substituted.
+is substituted; otherwise, nothing is substituted.
 .It Xo Ic ${ Ns Ar name Ns
 .Ic \&:\&= Ns Ar word Ns Ic \&}
 .Xc
@@ -929,7 +929,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise it is assigned
+it is substituted; otherwise, it is assigned
 .Ar word
 and the resulting value of
 .Ar name
@@ -941,7 +941,7 @@ If
 .Ar name
 is set and not
 .Dv NULL ,
-it is substituted, otherwise
+it is substituted; otherwise,
 .Ar word
 is printed on standard error (preceded by
 .Ar name Ns No \&: )
@@ -953,7 +953,7 @@ is used instead.
 .Pp
 In the above modifiers, the
 .Ql \&:
-can be omitted, in which case the conditions only depand on
+can be omitted, in which case the conditions only depend on
 .Ar name
 being set (as opposed to set and not
 .Dv NULL ) .
@@ -991,8 +991,8 @@ matches the beginning of the value of parameter
 .Ar name ,
 the matched text is deleted from the result of substitution. A single
 .Ql #
-results in the shortest match, two
-of them results in the longest match.
+results in the shortest match, and two
+of them result in the longest match.
 .Sm off
 .It Xo
 .Ic ${ Ar name Ic \&% Ar pattern Ic \&},\ \&
@@ -1013,7 +1013,9 @@ have been started, the parameter is not set.
 .It Ev \&#
 The number of positional parameters (i.e., $1, $2, etc.).
 .It Ev \&$
-The process ID of the shell, or the PID of the original shell if it is a
+The process ID of the shell, or the
+.Tn PID
+of the original shell if it is a
 subshell.
 .It Ev \&-
 The concatenation of the current single letter options (see
@@ -1180,7 +1182,7 @@ below.
 .It Ev PPID
 The process ID of the shell's parent (read-only).
 .It Ev PS1
-The prompt is printed verbatim (i.e., no substituions are done).
+The prompt is printed verbatim (i.e., no substitutions are done).
 Default is
 .Dq \&$\ \&
 for non-root users,
@@ -1319,14 +1321,16 @@ option is set, any directories that result from file name generation are marked
 with a trailing
 .Ql / .
 .Pp
-The POSIX character classes (i.e.,
+The
+.Tn POSIX
+character classes (i.e.,
 .Ic \&[\&: Ns Ar class-name Ns Ic \&:\&]
 inside a
 .Ic \&[ Ns No .. Ns Ic \&]
 expression) are not yet implemented.
 .Ss Input/output redirection
-When a command is executed, its standard input, standard output and standard
-error (file descriptors 0, 1 and 2, respectively) are normally inherited from
+When a command is executed, its standard input, standard output, and standard
+error (file descriptors 0, 1, and 2, respectively) are normally inherited from
 the shell. Three exceptions to this are commands in pipelines, for which
 standard input and/or standard output are those set up by the pipeline,
 asynchronous commands created when job control is disabled, for which standard
@@ -1341,7 +1345,7 @@ If
 .Ar file
 does not exist, it is created; if it does exist, is a regular file and the
 .Ic noclobber
-option is set, an error occurs, otherwise the file is truncated. Note that this
+option is set, an error occurs; otherwise, the file is truncated. Note that this
 means the command
 .Ic cmd < foo > foo
 will open
@@ -1375,7 +1379,7 @@ except the file is opened for reading and writing.
 .It Ic \&<\&< Ar marker
 After reading the command line containing this kind of redirection (called a
 .Dq here document ) ,
-the shell copies lines from the command source into a termpoary file until a
+the shell copies lines from the command source into a temporary file until a
 line matching
 .Ar marker
 is read. When the command is executed, standard input is redirected from the
@@ -1383,7 +1387,7 @@ temporary file. If
 .Ar marker
 contains no quoted characters, the contents of the temporary file are processed
 as if enclosed in double quotes each time the command is executed, so
-parameter, command and arithmetic substitutions are performed, along with
+parameter, command, and arithmetic substitutions are performed, along with
 backslash
 .Pq Sq \e
 escapes for
@@ -1417,8 +1421,8 @@ except the operation is done on standard output.
 .Pp
 In any of the above redirections, the file descriptor that is redirected (i.e.,
 standard input or standard output) can be explicitly given by preceding the
-redirection with a single digit. Parameter, command and arithmetic
-substitutions, tilde substitutions and (if the shell is interative)
+redirection with a single digit. Parameter, command, and arithmetic
+substitutions, tilde substitutions, and (if the shell is interactive)
 file name generation are all performed on the
 .Ar file ,
 .Ar marker
@@ -1429,8 +1433,8 @@ generation are only used if a single file is matched; if multiple files match,
 the word with the expanded file name generation characters is used. Note
 that in restricted shells, redirections which can create files cannot be used.
 .Pp
-For simple-commands, redirections may appear anywhere in the command, for
-compund-commands
+For simple-commands, redirections may appear anywhere in the command; for
+compound-commands
 .Po
 .Ic if
 statements, etc.
@@ -1522,9 +1526,12 @@ Result is the argument (included for completeness).
 .It unary Ic \&-
 Negation.
 .It Ic \&!
-Logical NOT; the result is 1 if argument is zero, 0 if not.
+Logical
+.Tn NOT ;
+the result is 1 if argument is zero, 0 if not.
 .It Ic \&~
-Arithmetic (bit-wise) NOT.
+Arithmetic (bit-wise)
+.Tn NOT .
 .It Ic \&+\&+
 Increment; must be applied to a parameter (not a literal or other expression).
 The parameter is incremented by 1. When used as a prefix operator, the result
@@ -1555,17 +1562,25 @@ is the same as
 .Ao Ar expr Ac
 .Ic \&) .
 .It Ic \&|\&|
-Logical OR; the result is 1 if either argument is non-zero, 0 if not. The right
+Logical
+.Tn OR ;
+the result is 1 if either argument is non-zero, 0 if not. The right
 argument is evaluated only if the left argument is zero.
 .It Ic \&&\&&
-Logical AND; the result is 1 if both arguments are non-zero, 0 if not. The
+Logical
+.Tn AND ;
+the result is 1 if both arguments are non-zero, 0 if not. The
 right argument is evaluated only if the left argument is non-zero.
 .It Ic \&|
-Arithmetic (bit-wise) OR.
+Arithmetic (bit-wise)
+.Tn OR .
 .It Ic ^
-Arithmetic (bit-wise) XOR (exclusive-OR).
+Arithmetic (bit-wise)
+.Tn XOR
+(exclusive-OR).
 .It Ic \&&
-Arithmetic (bit-wise) AND.
+Arithmetic (bit-wise)
+.Tn AND .
 .It Ic ==
 Equal; the result is 1 if both arguments are equal, 0 if not.
 .It Ic \&!=
@@ -1602,11 +1617,11 @@ syntax or the Bourne/POSIX shell
 .Fn name
 syntax (see below for the difference between the two forms). Functions are like
 .Li .-scripts
-in that they are executed in the current environment. Howeer, unlike
+in that they are executed in the current environment. However, unlike
 .Li .-scripts ,
 shell arguments (i.e., positional parameters $1, $2, etc.) are never visible
 inside them. When the shell is determining the location of a command, functions
-are searched after special built-in commands, and before regular and
+are searched after special built-in commands, before regular and
 non-regular built-ins, and before the
 .Ev PATH
 is searched.
@@ -1701,20 +1716,26 @@ returns.
 .El
 .El
 .Ss POSIX mode
-The shell is intended to be POSIX compliant, however, in some cases, POSIX
+The shell is intended to be
+.Tn POSIX
+compliant; however, in some cases,
+.Tn POSIX
 behaviour is contrary either to the original Korn shell behaviour or to user
 convenience. How the shell behaves in these cases is determined by the state
 of the
 .Ic posix
 option
 .Pq Ic set Fl o Ic posix .
-If it is on, the POSIX behaviour is followed, otherwise it is not. The
+If it is on, the
+.Tn POSIX
+behaviour is followed; otherwise, it is not. The
 .Ic posix
 option is set automatically when the shell starts up if the environment
 contains the
 .Dv POSIXLY_CORRECT
-parameter. (The shell can also be compiled so that it is in POSIX mode by
-default, however this is usually not desirable).
+parameter. (The shell can also be compiled so that it is in
+.Tn POSIX
+mode by default; however, this is usually not desirable).
 .Pp
 The following is a list of things that are affected by the state of the
 .Ic posix
@@ -1733,22 +1754,34 @@ Occurrences of
 .Ic \e\&"
 inside double quoted
 .Ic `\&.\&.`
-command substitutions. In POSIX mode, the
+command substitutions. In
+.Tn POSIX
+mode, the
 .Ic \e\&"
-is interpreted when the command is interpreted; in non-POSIX mode, the
+is interpreted when the command is interpreted; in
+.Pf non- Tn POSIX
+mode, the
 backslash is stripped before the command substitution is interpreted. For
 example,
 .Ic echo \&"`echo \e\&"hi\e\&"`\&"
 produces
 .Dq \&"hi\&"
-in POSIX mode,
+in
+.Tn POSIX
+mode,
 .Dq hi
-in non-POSIX mode. To avoid problems, use the
+in
+.Pf non- Tn POSIX
+mode. To avoid problems, use the
 .Ic $(...)
 form of command substitution.
 .It
 .Ic kill -l
-output. In POSIX mode, signal names are listed one per line; in non-POSIX mode,
+output. In
+.Tn POSIX
+mode, signal names are listed one per line; in
+.Pf non- Tn POSIX
+mode,
 signal numbers, names and descriptions are printed in columns. In future, a new
 option
 .Po Fl v
@@ -1757,43 +1790,65 @@ option
 will be added to distinguish the two behaviours.
 .It
 .Ic fg
-exit status. In POSIX mode, the exit status is 0 if no errors occur; in
-non-POSIX mode, the exit status is that of the last foregrounded job.
+exit status. In
+.Tn POSIX
+mode, the exit status is 0 if no errors occur; in
+.Pf non- Tn POSIX
+mode, the exit status is that of the last foregrounded job.
 .It
 .Ic getopts .
-In POSIX mode, options must start with a
+In
+.Tn POSIX
+mode, options must start with a
 .Ql - ;
-in non-POSIX mode, options can start with either
+in
+.Pf non- Tn POSIX
+mode, options can start with either
 .Ql -
 or
 .Ql + .
 .It
-Brace expansion (also known as alternation). In POSIX mode, brace expansion is
-disabled; in non-POSIX mode, brace expansion is enabled. Note that
+Brace expansion (also known as alternation). In
+.Tn POSIX
+mode, brace expansion is
+disabled; in
+.Pf non- Tn POSIX
+mode, brace expansion is enabled. Note that
 .Ic set Fl o Ic posix
 (or setting the
 .Ev POSIXLY_CORRECT
 parameter) automatically turns the
 .Ic braceexpand
-option off, however, it can be explicitly turned on later.
+option off, although it can be explicitly turned on later.
 .It
 .Ic set \&- .
-In POSIX mode, this does not clear the
+In
+.Tn POSIX
+mode, this does not clear the
 .Ic verbose
 or
 .Ic xtrace
-options; in non-POSIX mode, it does.
+options; in
+.Pf non- Tn POSIX
+mode, it does.
 .It
 .Ic set
-exit status. In POSIX mode, the exit status of
+exit status. In
+.Tn POSIX
+mode, the exit status of
 .Ic set
-is 0 if there are no errors; in non-POSIX mode, the exit status is that of any
+is 0 if there are no errors; in
+.Pf non- Tn POSIX
+mode, the exit status is that of any
 command substitutions performed in generating the
 .Ic set
 command. For example,
 .Ic set \&-\&- `false`; echo $?
-prints 0 in POSIX mode, 1 in non-POSIX mode. This construct is used in most
-shell scripts that use the old
+prints 0 in
+.Tn POSIX
+mode, 1 in
+.Pf non- Tn POSIX
+mode. This construct is used in most shell scripts that use the old
 .Xr getopt 1
 command.
 .It
@@ -1803,16 +1858,30 @@ Argument expansion of
 .Ic readonly ,
 and
 .Ic typeset
-commands. In POSIX mode, normal argument expansion is done; in non-POSIX mode,
+commands. In
+.Tn POSIX
+mode, normal argument expansion is done; in
+.Pf non- Tn POSIX
+mode,
 field splitting, file globbing, brace expansion, and (normal) tilde expansion
 are turned off, while assignment tilde expansion is turned on.
 .It
-Signal specification. In POSIX mode, signals can be specified as digits, only
-if signal numbers match POSIX values (i.e., HUP=1, INT=2, QUIT=3, ABRT=6,
-KILL=9, ALRM=14, and TERM=15); in non-POSIX mode, signals can always be digits.
+Signal specification. In
+.Tn POSIX
+mode, signals can be specified as digits, only
+if signal numbers match
+.Tn POSIX
+values (i.e., HUP=1, INT=2, QUIT=3, ABRT=6,
+KILL=9, ALRM=14, and TERM=15); in
+.Pf non- Tn POSIX
+mode, signals can always be digits.
 .It
-Alias expansion. In POSIX mode, alias expansion is only carried out when
-reading command words; in non-POSIX mode, alias expansion is carried out on any
+Alias expansion. In
+.Tn POSIX
+mode, alias expansion is only carried out when
+reading command words; in
+.Pf non- Tn POSIX
+mode, alias expansion is carried out on any
 word following an alias that ended in a space. For example, the following
 .Ic for
 loop
@@ -1826,16 +1895,23 @@ loop
 .Pp
 uses parameter
 .Ic i
-in POSIX mode,
+in
+.Tn POSIX
+mode,
 .Ic j
-in non-POSIX mode.
+in
+.Pf non- Tn POSIX
+mode.
 .It
-Test. In POSIX mode, the expression
+Test. In
+.Tn POSIX
+mode, the expression
 .Ql Fl t
 (preceded by some number of
 .Ql Ic \&!
-arguments) is always true as it is a non-zero length string; in non-POSIX mode,
-it tests if file descriptor 1 is a tty (i.e., the
+arguments) is always true as it is a non-zero length string; in
+.Pf non- Tn POSIX
+mode, it tests if file descriptor 1 is a tty (i.e., the
 .Ar fd
 argument to the
 .Fl t
@@ -1843,8 +1919,8 @@ test may be left out and defaults to 1).
 .El
 .Ss Command execution
 After evaluation of command-line arguments, redirections and parameter
-assignments, the type of command is determined; a special built-in, a function,
-a regular built-in, or the name of a file to execute found using the
+assignments, the type of command is determined:  a special built-in, a
+function, a regular built-in, or the name of a file to execute found using the
 .Ev PATH
 parameter. The checks are made in the above order. Special built-in commands
 differ from other commands in that the
@@ -1863,7 +1939,9 @@ different only in that the
 .Ev PATH
 parameter is not used to find them.
 .Pp
-The original ksh and POSIX differ somewhat in which commands are considered
+The original ksh and
+.Tn POSIX
+differ somewhat in which commands are considered
 special or regular:
 .Pp
 POSIX special commands
@@ -1894,7 +1972,9 @@ Additional ksh regular commands
 .Ic pwd , test , ulimit , whence
 .Pp
 In the future, the additional ksh special and regular commands may be treated
-differently from the POSIX special and regular commands.
+differently from the
+.Tn POSIX
+special and regular commands.
 .Pp
 Once the type of the command has been determined, any command-line parameter
 assignments are performed and exported for the duration of the command.
@@ -2054,7 +2134,7 @@ directory.
 .Ar cmd Op Ar arg1 ...
 .Xc
 .Ar cmd
-is executed exactly as if the
+is executed exactly as if
 .Ic command
 had not been specified, with two exceptions. First,
 .Ar cmd
@@ -2064,8 +2144,8 @@ exit, and command assignments are not permanent). If the
 .Fl p
 option is given, a default search path is used instead of the current value of
 .Ev PATH
-(the actual value of the default path is system dependent; on POSIXish systems,
-it is the value returned by
+(the actual value of the default path is system dependent:  on POSIXish
+systems, it is the value returned by
 .Ic getconf CS_PATH ) .
 .It Ic continue Op Ar level
 Jumps to the beginning of the
@@ -2106,7 +2186,8 @@ string which the shell then parses and executes in the current environment.
 .Xc
 The command is executed without forking, replacing the shell process.
 .Pp
-If no arguments are given, and I/O redirection is permanent and the shell is
+If no command is given except for I/O redirection, the I/O redirection is
+permanent and the shell is
 not replaced. Any file descriptors which are opened or
 .Xr dup 2 Ns No 'd
 in this way are made available to other executed commands (note that the Korn
@@ -2164,10 +2245,10 @@ parameters, if no arguments are given) and to check for legal options.
 contains the option letters that
 .Ic getopts
 is to recognize. If a letter is followed by a colon, the option is expected to
-ahve an argument. Options that do not take arguments may be grouped in a single
+have an argument. Options that do not take arguments may be grouped in a single
 argument. If an option takes an argument and the option character is not the
 last character of the argument it is found in, the remainder of the argument is
-taken to be the option's argument, otherwise, the next argument is the option's
+taken to be the option's argument; otherwise, the next argument is the option's
 argument.
 .Pp
 Each time
@@ -2262,7 +2343,7 @@ a short description of them are printed.
 .Li | Fl R No [-en] Oc [argument\ ...]
 .Xc
 .Ic print
-prints its arguments on the standard output, separated by spaces, and
+prints its arguments on the standard output, separated by spaces and
 terminated with a newline. The
 .Fl n
 option suppresses the newline. By default, certain C escapes are translated.
@@ -2569,7 +2650,9 @@ and
 .Ic pwd
 commands above for more details.
 .It Ic posix
-Enable POSIX mode. See
+Enable
+.Tn POSIX
+mode. See
 .Sx POSIX mode
 above.
 .It Ic vi
@@ -2630,7 +2713,7 @@ defaults to 1.
 .Ic test
 evaluates the
 .Ar expression
-and returns zero status if true, 1 status if fase, and greater than 1 if there
+and returns zero status if true, 1 status if false, or greater than 1 if there
 was an error. It is normally used as the condition command of
 .Ic if
 and
@@ -2694,7 +2777,7 @@ mode has sticky bit set.
 is not empty.
 .It Fl O Ar file
 .Ar file Ns 's
-owned is the shell's effective user ID.
+owner is the shell's effective user ID.
 .It Fl G Ar file
 .Ar file Ns 's
 group is the shell's effective group ID.
@@ -2749,7 +2832,9 @@ is a tty device. If the
 option is not set,
 .Ar fd
 may be left out, in which case it is taken to be 1 (the behaviour differs due
-to the special POSIX rules described below).
+to the special
+.Tn POSIX
+rules described below).
 .It Ar string
 .Ar string
 is not empty.
@@ -2783,11 +2868,14 @@ increasing order of precedence):
 .Pp
 .Bl -tag -width "expr -o expr" -compact
 .It Ar expr Fl o Ar expr
-Logical OR.
+Logical
+.Tn OR .
 .It Ar expr Fl a Ar expr
-Logical AND.
+Logical
+.Tn AND .
 .It Ic \&! Ar expr
-Logical NOT.
+Logical
+.Tn NOT .
 .It Ic \&( Ar expr Ic \&)
 Grouping.
 .El
@@ -2804,7 +2892,9 @@ test). For example,
 .Ic \&[ -w /dev/fd/2 \&]
 tests if file descriptor 2 is writable.
 .Pp
-Note that some special rules are applied (courtesy of POSIX) if the number of
+Note that some special rules are applied (courtesy of
+.Tn POSIX )
+if the number of
 arguments to
 .Ic test
 or
@@ -3097,7 +3187,7 @@ Display or set the file permission creation mask, or umask (see
 .Xr umask 2 ) .
 If the
 .Fl S
-option is used, the mask displayed or set is symbolic, otherwise it is an
+option is used, the mask displayed or set is symbolic; otherwise, it is an
 octal number.
 .Pp
 Symbolic masks are like those used by
@@ -3377,7 +3467,9 @@ features whose syntax or semantics are incompatible with a traditional Bourne
 shell disabled. Since this leaves some
 .Nm ksh
 extensions exposed, caution should be used where backwards compatibility with
-traditional Bourne or POSIX compliant shells is an issue.
+traditional Bourne or
+.Tn POSIX
+compliant shells is an issue.
 .Sh BUGS
 Any bugs in
 .Nm pdksh