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MSGGREP(1) User Commands MSGGREP(1) NAME msggrep - pattern matching on message catalog SYNOPSIS msggrep [OPTION] [INPUTFILE] DESCRIPTION Extracts all messages of a translation catalog that match a given pattern or belong to some given source files. Mandatory arguments to long options are mandatory for short options too. Input file location: INPUTFILE input PO file -D, --directory=DIRECTORY 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: -o, --output-file=FILE write output to specified file The results are written to standard output if no output file is specified or if it is -. Message selection: [-N SOURCEFILE]... [-M DOMAINNAME]... [-J MSGCTXT-PATTERN] [-K MS- GID-PATTERN] [-T MSGSTR-PATTERN] [-C COMMENT-PATTERN] [-X EX- TRACTED-COMMENT-PATTERN] [-W WORKFLOW-FLAG] [-S STICKY-FLAG] 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 ex- tracted comment matches EXTRACTED-COMMENT-PATTERN, or if -W is given and its flags contain WORKFLOW-FLAG, or if -S is given and its flags contain STICKY-FLAG. When more than one selection criterion is specified, the set of selected messages is the union of the selected messages of each criterion. 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 ex- pressions if -E is given, or fixed strings if -F is given. -N, --location=SOURCEFILE select messages extracted from SOURCEFILE -M, --domain=DOMAINNAME select messages belonging to domain DOMAINNAME -J, --msgctxt start of patterns for the msgctxt -K, --msgid start of patterns for the msgid -T, --msgstr start of patterns for the msgstr -C, --comment start of patterns for the translator's comment -X, --extracted-comment start of patterns for the extracted comment -E, --extended-regexp PATTERN is an extended regular expression -F, --fixed-strings PATTERN is a set of newline-separated strings -e, --regexp=PATTERN use PATTERN as a regular expression -f, --file=FILE obtain PATTERN from FILE -i, --ignore-case ignore case distinctions -W, --workflow-flag=FLAG select messages with FLAG -S, --sticky-flag=FLAG select messages with FLAG -v, --invert-match output only the messages that do not match any selection criterion Input file syntax: -P, --properties-input input file is in Java .properties syntax --stringtable-input input file is in NeXTstep/GNUstep .strings syntax Output details: --color use colors and other text attributes always --color=WHEN use colors and other text attributes if WHEN. WHEN may be 'always', 'never', 'auto', or 'html'. --style=STYLEFILE specify CSS style rule file for --color --no-escape do not use C escapes in output (default) --escape use C escapes in output, no extended chars --force-po write PO file even if empty --indent indented output style --no-location suppress '#: filename:line' lines -n, --add-location preserve '#: filename:line' lines (default) --strict strict Uniforum output style -p, --properties-output write out a Java .properties file --stringtable-output write out a NeXTstep/GNUstep .strings file -w, --width=NUMBER set output page width --no-wrap do not break long message lines, longer than the output page width, into several lines --sort-output generate sorted output --sort-by-file sort output by file location Informative output: -h, --help display this help and exit -V, --version output version information and exit AUTHOR Written by Bruno Haible. REPORTING BUGS Report bugs in the bug tracker at <https://savannah.gnu.org/projects/get- text> or by email to <bug-gettext@gnu.org>. COPYRIGHT Copyright (C) 2001-2026 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO The full documentation for msggrep is maintained as a Texinfo manual. If the info and msggrep programs are properly installed at your site, the com- mand info msggrep should give you access to the complete manual. GNU gettext-tools 1.0 January 2026 MSGGREP(1)
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