Many improvements and general cleanup/standardization.

1 files changed, 90 insertions, 86 deletions

diff --git a/usr.bin/at/at.1 b/usr.bin/at/at.1
index 2d3228a1734..c33b1d9ac6f 100644
--- a/usr.bin/at/at.1
+++ b/usr.bin/at/at.1
@@ -1,4 +1,4 @@
-.\" $OpenBSD: at.1,v 1.12 1999/09/14 05:28:23 deraadt Exp $
+.\" $OpenBSD: at.1,v 1.13 2000/03/04 21:12:00 aaron Exp $
 .\" $FreeBSD: at.man,v 1.6 1997/02/22 19:54:05 peter Exp $
 .Dd April 12, 1995
 .Dt AT 1
@@ -34,17 +34,19 @@
 .Op Fl mv
 .Op Ar time
 .Sh DESCRIPTION
-.Nm
+.Nm at
 and
 .Nm batch
 read commands from standard input or a specified file which
 are to be executed at a later time, using
 .Xr sh 1 .
+.Pp
+The related programs are as follows:
 .Bl -tag -width indent
 .It Nm at
 Executes commands at a specified time.
 .It Nm atq
-Lists the user's pending jobs, unless the user is the superuser.
+Lists the user's pending jobs, unless the user is the super-user.
 In that case, all users' jobs are listed.
 .It Nm atrm
 Deletes jobs.
@@ -54,7 +56,61 @@ the load average drops below 1.5, or the value specified in the invocation of
 .Nm atrun .
 .El
 .Pp
-.Nm
+The options are as follows:
+.Bl -tag -width indent
+.It Fl V
+Prints the version number to standard error.
+.It Fl q Ar queue
+Uses the specified queue.
+A queue designation consists of a single letter.  Valid queue designations
+range from
+.Sy a
+to
+.Sy z
+and
+.Sy A
+to
+.Sy Z .
+The
+.Sy c
+queue is the default for
+.Nm at
+and the
+.Sy E
+queue for
+.Nm batch .
+Queues with higher letters run with increased niceness.
+If a job is submitted to a queue designated with an uppercase letter, it
+is treated as if it had been submitted to batch at that time.
+If
+.Nm atq
+is given a specific queue, it will only show jobs pending in that queue.
+.It Fl m
+Send mail to the user when the job has completed, even if there was no
+output.
+.It Fl f Ar file
+Reads the job from
+.Ar file
+rather than standard input.
+.It Fl l
+An alias for
+.Nm atq .
+.It Fl d
+An alias for
+.Nm atrm .
+.It Fl b
+An alias for
+.Nm batch .
+.It Fl v
+For
+.Nm atq ,
+shows completed but not yet deleted jobs in the queue.  Otherwise
+shows the time the job will be executed.
+.It Fl c
+Prints the jobs listed on the command line to standard output.
+.El
+.Pp
+.Nm at
 allows some moderately complex
 .Ar time
 specifications.  It accepts times of the form
@@ -64,15 +120,15 @@ or
 to run a job at a specific time of day.
 (If that time is already past, the next day is assumed.)
 You may also specify
-.Nm midnight ,
-.Nm noon ,
+.Sy midnight ,
+.Sy noon ,
 or
-.Nm teatime
+.Sy teatime
 (4pm)
 and you can have a time-of-day suffixed with
-.Nm AM
+.Dq AM
 or
-.Nm PM
+.Dq PM
 for running in the morning or the evening.
 You can also say what day the job will be run,
 by giving a date in the form
@@ -84,38 +140,40 @@ or giving a date of the form
 .Ar MM/DD/YY
 or
 .Ar DD.MM.YY .
-The year may be given as two digits or four digits.
+.Pp
+The year may be given as two or four digits.
 If the year is given as two digits, it is taken to occur as soon as
 possible in the future, which may be in the next century --
 unless it's last year, in which case it's considered to be
 a typo.
+.Pp
 The specification of a date must follow the specification of
 the time of day.
 You can also give times like
-.Op Nm now
-.Nm + Ar count \%time-units ,
+.Op Sq now
+.Sy + Ar count \%time-units ,
 where the time-units can be
-.Nm minutes ,
-.Nm hours ,
-.Nm days ,
+.Sy minutes ,
+.Sy hours ,
+.Sy days ,
 or
-.Nm weeks
+.Sy weeks
 and you can tell
-.Nm
+.Nm at
 to run the job today by suffixing the time with
-.Nm today
+.Sy today
 and to run the job tomorrow by suffixing the time with
-.Nm tomorrow .
+.Sy tomorrow .
 .Pp
 For example, to run a job at 4pm three days from now, you would do
-.Nm at 4pm + 3 days .
+.Ic at 4pm + 3 days .
 To run a job at 10:00am on July 31, you would do
-.Nm at 10am Jul 31 .
+.Ic at 10am Jul 31 .
 To run a job at 1am tomorrow, you would do
-.Nm at 1am tomorrow .
+.Ic at 1am tomorrow .
 .Pp
 For both
-.Nm
+.Nm at
 and
 .Nm batch ,
 commands are read from standard input or the file specified
@@ -127,12 +185,12 @@ The working directory, the environment (except for the variables
 .Ev TERMCAP ,
 .Ev DISPLAY ,
 and
-.Ev _ )
+.Ev _ ) ,
 and the
 .Ar umask
 are retained from the time of invocation.
 An
-.Nm
+.Nm at
 or
 .Nm batch
 command invoked from a
@@ -142,12 +200,12 @@ The user will be mailed standard error and standard output from his
 commands, if any. Mail will be sent using the command
 .Xr sendmail 8 .
 If
-.Nm
+.Nm at
 is executed from a
 .Xr su 1
 shell, the owner of the login shell will receive the mail.
 .Pp
-The superuser may use these commands in any case.
+The super-user may use these commands in any case.
 For other users, permission to use at is determined by the files
 .Pa /var/at/at.allow
 and
@@ -157,7 +215,6 @@ If the file
 .Pa /var/at/at.allow
 exists, only usernames mentioned in it are allowed to use
 .Nm at .
-.Pp
 If
 .Pa /var/at/at.allow
 does not exist,
@@ -165,66 +222,14 @@ does not exist,
 is checked. Every username not mentioned in it is then allowed
 to use
 .Nm at .
-.Pp
-If neither exists, only the superuser is allowed use of
+If neither exists, only the super-user is allowed use of
 .Nm at .
 .Pp
 An empty
 .Pa /var/at/at.deny
 means that every user is allowed use these commands.
 This is the default configuration.
-.Sh OPTIONS
-.Bl -tag -width indent
-.It Fl V
-Prints the version number to standard error.
-.It Fl q Ar queue
-Uses the specified queue.
-A queue designation consists of a single letter.  Valid queue designations
-range from
-.Nm a
-to
-.Nm z
-and
-.Nm A
-to
-.Nm Z .
-The
-.Nm c
-queue is the default for
-.Nm
-and the
-.Nm E
-queue for
-.Nm batch .
-Queues with higher letters run with increased niceness.
-If a job is submitted to a queue designated with an uppercase letter, it
-is treated as if it had been submitted to batch at that time.
-If
-.Nm atq
-is given a specific queue, it will only show jobs pending in that queue.
-.It Fl m
-Send mail to the user when the job has completed, even if there was no
-output.
-.It Fl f Ar file
-Reads the job from
-.Ar file
-rather than standard input.
-.It Fl l
-Is an alias for
-.Nm atq .
-.It Fl d
-Is an alias for
-.Nm atrm .
-.It Fl b
-Is an alias for
-.Nm batch .
-.It Fl v
-For
-.Nm atq ,
-shows completed but not yet deleted jobs in the queue.  Otherwise
-shows the time the job will be executed.
-.It Fl c
-Prints the jobs listed on the command line to standard output.
+.Pp
 .Sh FILES
 .Bl -tag -width /var/at/.lockfile -compact
 .It Pa /var/at/jobs
@@ -246,19 +251,18 @@ job-creation lock file
 .Xr atrun 8 ,
 .Xr cron 8 ,
 .Xr sendmail 8
-.El
 .Sh BUGS
 If the file
 .Pa /var/run/utmp
 is not available or corrupted, or if the user is not logged on at the
 time
-.Nm
+.Nm at
 is invoked, the mail is sent to the user ID found
 in the environment variable
 .Ev LOGNAME .
 If that is undefined or empty, the current user ID is assumed.
 .Pp
-.Nm
+.Nm at
 and
 .Nm batch
 as presently implemented are not suitable when users are competing for
@@ -273,6 +277,6 @@ always prints the year as two digits.  Since
 only permits submission of jobs in the future, it is somewhat
 clear which century the job will run in.
 .Sh AUTHORS
-.Nm
+.Nm at
 was mostly written by Thomas Koenig <ig25@rz.uni-karlsruhe.de>.
 The time parsing routines are by David Parsons <orc@pell.chi.il.us>.