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| author | Paul Eggert <eggert@cs.ucla.edu> | 2020-11-03 11:09:47 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2020-11-03 11:09:47 -0800 |
| commit | 790be1fb2a5949277ccc89f8a1c9c49733045d85 (patch) | |
| tree | 488de6cc3ef46b7d41b91ae529525eb366ec9e91 /doc/grep.texi | |
| parent | ffc6e407e3657598702ba24ab1ba3a6b8ab253ea (diff) | |
| download | grep-790be1fb2a5949277ccc89f8a1c9c49733045d85.tar.gz | |
grep: remove GREP_OPTIONS
* NEWS: Mention this.
* doc/grep.in.1:
Remove GREP_OPTIONS documentation.
* doc/grep.texi (Environment Variables):
Move GREP_OPTIONS stuff into a “no longer implemented” paragraph.
* src/grep.c (prepend_args, prepend_default_options): Remove.
(main): Do not look at GREP_OPTIONS.
* tests/Makefile.am (TESTS_ENVIRONMENTS):
* tests/init.cfg (vars_): Remove GREP_OPTIONS.
Diffstat (limited to 'doc/grep.texi')
| -rw-r--r-- | doc/grep.texi | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/doc/grep.texi b/doc/grep.texi index 0c0bb124..fce36cdf 100644 --- a/doc/grep.texi +++ b/doc/grep.texi @@ -887,24 +887,6 @@ the @code{terminfo} library. @table @env -@item GREP_OPTIONS -@vindex GREP_OPTIONS @r{environment variable} -@cindex default options environment variable -This variable specifies default options to be placed in front of any -explicit options. -As this causes problems when writing portable scripts, this feature -will be removed in a future release of @command{grep}, and @command{grep} -warns if it is used. Please use an alias or script instead. -For example, if @command{grep} is in the directory @samp{/usr/bin} you -can prepend @file{$HOME/bin} to your @env{PATH} and create an -executable script @file{$HOME/bin/grep} containing the following: - -@example -#! /bin/sh -export PATH=/usr/bin -exec grep --color=auto --devices=skip "$@@" -@end example - @item GREP_COLOR @vindex GREP_COLOR @r{environment variable} @cindex highlight markers @@ -1097,6 +1079,20 @@ and only when @env{POSIXLY_CORRECT} is not set. @end table +The @env{GREP_OPTIONS} environment variable of @command{grep} 2.20 and +earlier is no longer supported, as it caused problems when writing +portable scripts. To make arbitrary changes to how @command{grep} +works, you can use an alias or script instead. For example, if +@command{grep} is in the directory @samp{/usr/bin} you can prepend +@file{$HOME/bin} to your @env{PATH} and create an executable script +@file{$HOME/bin/grep} containing the following: + +@example +#! /bin/sh +export PATH=/usr/bin +exec grep --color=auto --devices=skip "$@@" +@end example + @node Exit Status @section Exit Status |