diff options
| author | Jason McIntyre <jmc@cvs.openbsd.org> | 2004-10-04 21:34:18 +0000 |
|---|---|---|
| committer | Jason McIntyre <jmc@cvs.openbsd.org> | 2004-10-04 21:34:18 +0000 |
| commit | 36b6665f9310dde51c2cd216122f86017c0e5170 (patch) | |
| tree | 5de020cebcff767d31d183cf16a1682308163c80 | |
| parent | 492b42938798330dc5369ef7338281a110fbc2ae (diff) | |
remove the section on extended regular expressions, and point
people instead to re_format.7: there is now a list of EREs there;
| -rw-r--r-- | usr.bin/grep/grep.1 | 49 |
1 files changed, 8 insertions, 41 deletions
diff --git a/usr.bin/grep/grep.1 b/usr.bin/grep/grep.1 index 0bf72745bb0..0501945dbc8 100644 --- a/usr.bin/grep/grep.1 +++ b/usr.bin/grep/grep.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: grep.1,v 1.28 2004/09/28 21:08:47 jmc Exp $ +.\" $OpenBSD: grep.1,v 1.29 2004/10/04 21:34:17 jmc Exp $ .\" Copyright (c) 1980, 1990, 1993 .\" The Regents of the University of California. All rights reserved. .\" @@ -64,17 +64,14 @@ to the standard output. .Pp .Nm grep is used for simple patterns and -.Xr ex 1 - -or -.Xr ed 1 -style -regular expressions. +basic regular expressions +.Pq BREs ; .Nm egrep -can handle extended regular expressions; -for a discussion of extended regular expressions, see -.Xr re_format 7 ; -for a list of extended regular expression special characters, see -.Sx EXTENDED REGULAR EXPRESSIONS , -below. +can handle extended regular expressions +.Pq EREs . +See +.Xr re_format 7 +for more information on regular expressions. .Nm fgrep is quicker than both .Nm grep @@ -306,35 +303,6 @@ No lines were selected. .It Li \*(Gt1 An error occurred. .El -.Sh EXTENDED REGULAR EXPRESSIONS -The following characters are interpreted by -.Nm egrep : -.Pp -.Bl -tag -width flag -compact -.It Cm ^ -Align the match from the beginning of the line. -.It Cm $ -Align the match from the end of the line. -.It Cm \&| -Add another pattern (see example below). -.It Cm \&. -Match any single character. -.It Cm \&? -Match 1 or less sequential repetitions of the pattern. -.It Cm + -Match 1 or more sequential repetitions of the pattern. -.It Cm * -Match 0 or more sequential repetitions of the pattern. -.It Cm {} -Match specified number of sequential repetitions of the pattern. -.It Cm [] -Match any characters enclosed in the brackets. -.It Cm () -Delimits a subexpression. -.It Cm \e -Escape special characters which have meaning to -.Nm egrep . -.El .Sh EXAMPLES To find all occurrences of the word .Sq patricia @@ -379,7 +347,6 @@ looking for either 19, 20, or 25. .Xr ex 1 , .Xr gzip 1 , .Xr sed 1 , -.Xr regex 3 , .Xr re_format 7 .Sh STANDARDS The |