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| author | Jim Meyering <meyering@fb.com> | 2023-04-29 01:38:12 -0700 |
|---|---|---|
| committer | Jim Meyering <meyering@meta.com> | 2023-04-29 01:38:31 -0700 |
| commit | 7460d0f8b02714a7297ccf9349299cdacc2619bf (patch) | |
| tree | a8da7f551a64282a4bcddfc49eb4587e928bfd34 /doc | |
| parent | 92585cde9b5938d433738a873c8d44713d005f2c (diff) | |
| download | grep-7460d0f8b02714a7297ccf9349299cdacc2619bf.tar.gz | |
doc: say that `-f -` reads patterns from stdin
* doc/grep.texi (Matching Control): Mention that when -f's FILE is -,
grep reads patterns from stdin.
* doc/grep.in.1: Likewise.
* THANKS.in: Add the name.
Suggested by Sebastian Carlos in https://bugs.gnu.org/63146
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/grep.in.1 | 5 | ||||
| -rw-r--r-- | doc/grep.texi | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/doc/grep.in.1 b/doc/grep.in.1 index f7b8a03e..236791ee 100644 --- a/doc/grep.in.1 +++ b/doc/grep.in.1 @@ -244,6 +244,11 @@ If this option is used multiple times or is combined with the .RB ( \-\^\-regexp ) option, search for all patterns given. The empty file contains zero patterns, and therefore matches nothing. +If +.IR FILE +is +.B \- +, read patterns from standard input. .TP .BR \-i ", " \-\^\-ignore\-case Ignore case distinctions in patterns and input data, diff --git a/doc/grep.texi b/doc/grep.texi index e05ae257..ce6d6dc0 100644 --- a/doc/grep.texi +++ b/doc/grep.texi @@ -202,6 +202,7 @@ in a shell command. Obtain patterns from @var{file}, one per line. If this option is used multiple times or is combined with the @option{-e} (@option{--regexp}) option, search for all patterns given. +When @var{file} is @samp{-}, read patterns from standard input. The empty file contains zero patterns, and therefore matches nothing. (@option{-f} is specified by POSIX.) |