MSGGREP(1) GNU MSGGREP(1)
msggrep – pattern matching on message catalog
msggrep [OPTION] [INPUTFILE]
Extracts all messages of a translation catalog that match a given pat‐
tern or belong to some given source files.
Mandatory arguments to long options are mandatory for short options
Input file location:
input PO file
add DIRECTORY to list for input files search
If no input file is given or if it is -, standard input is read.
Output file location:
write output to specified file
The results are written to standard output if no output file is speci‐
fied or if it is -.
[-N SOURCEFILE]… [-M DOMAINNAME]… [-J MSGCTXT-PATTERN] [-K
MSGID-PATTERN] [-T MSGSTR-PATTERN] [-C COMMENT-PATTERN] [-X
A message is selected if it comes from one of the specified source
files, or if it comes from one of the specified domains, or if -J is
given and its context (msgctxt) matches MSGCTXT-PATTERN, or if -K is
given and its key (msgid or msgid_plural) matches MSGID-PATTERN, or if
-T is given and its translation (msgstr) matches MSGSTR-PATTERN, or if
-C is given and the translator’s comment matches COMMENT-PATTERN, or if
-X is given and the extracted comment matches EXTRACTED-COMMENT-PAT‐
When more than one selection criterion is specified, the set of
selected messages is the union of the selected messages of each crite‐
MSGCTXT-PATTERN or MSGID-PATTERN or MSGSTR-PATTERN or COMMENT-PATTERN
or EXTRACTED-COMMENT-PATTERN syntax:
[-E | -F] [-e PATTERN | -f FILE]…
PATTERNs are basic regular expressions by default, or extended regular
expressions if -E is given, or fixed strings if -F is given.
select messages extracted from SOURCEFILE
select messages belonging to domain DOMAIN
start of patterns for the msgctxt
start of patterns for the msgid
start of patterns for the msgstr
start of patterns for the translator’s comment
start of patterns for the extracted comment
PATTERN is an extended regular expression
PATTERN is a set of newline-separated strings
use PATTERN as a regular expression
obtain PATTERN from FILE
ignore case distinctions
output only the messages that do not match any selection crite‐
Input file syntax:
input file is in Java .properties syntax
input file is in NeXTstep/GNUstep .strings syntax
use colors and other text attributes always
use colors and other text attributes if WHEN. WHEN may be
‘always’, ‘never’, ‘auto’, or ‘html’.
specify CSS style rule file for –color
do not use C escapes in output (default)
use C escapes in output, no extended chars
write PO file even if empty
indented output style
suppress ‘#: filename:line’ lines
preserve ‘#: filename:line’ lines (default)
strict Uniforum output style
write out a Java .properties file
write out a NeXTstep/GNUstep .strings file
set output page width
do not break long message lines, longer than the output page
width, into several lines
generate sorted output
sort output by file location
display this help and exit
output version information and exit
Written by Bruno Haible.
Report bugs to
Copyright © 2001-2010 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
The full documentation for msggrep is maintained as a Texinfo manual.
If the info and msggrep programs are properly installed at your site,
should give you access to the complete manual.
GNU gettext-tools 0.19.7 December 2015 MSGGREP(1)