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.
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.
-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 -.
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-PATTERN.
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 expressions 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
-v, --invert-match output only the messages that do not match any selection criterion
-P, --properties-input input file is in Java .properties syntax
--stringtable-input input file is in NeXTstep/GNUstep .strings syntax
--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
--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
-h, --help display this help and exit
-V, --version output version information and exit
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
should give you access to the complete manual.