msguniq - unify duplicate translations in message catalog
msguniq [OPTION] [INPUTFILE]
Unifies duplicate translations in a translation catalog. Finds duplicate
  translations of the same message ID. Such duplicates are invalid input for
  other programs like msgfmt, msgmerge or msgcat. By default, duplicates are
  merged together. When using the --repeated option, only duplicates are
  output, and all other messages are discarded. Comments and extracted comments
  will be cumulated, except that if --use-first is specified, they will
  be taken from the first translation. File positions will be cumulated. When
  using the --unique option, duplicates are discarded.
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 -.
  - -d, --repeated
- print only duplicates
- -u, --unique
- print only unique messages, discard duplicates
  - -P, --properties-input
- input file is in Java .properties syntax
- --stringtable-input
- input file is in NeXTstep/GNUstep .strings syntax
  - -t, --to-code=NAME
- encoding for output
- --use-first
- use first available translation for each message, don't merge several
      translations
- -e, --no-escape
- do not use C escapes in output (default)
- -E, --escape
- use C escapes in output, no extended chars
- --force-po
- write PO file even if empty
- -i, --indent
- write the .po file using indented style
- --no-location
- do not write '#: filename:line' lines
- -n, --add-location
- generate '#: filename:line' lines (default)
- --strict
- write out strict Uniforum conforming .po file
- -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
- -s, --sort-output
- generate sorted output
- -F, --sort-by-file
- sort output by file location
  - -h, --help
- display this help and exit
- -V, --version
- output version information and exit
Report bugs to <bug-gnu-gettext@gnu.org>.
Copyright © 2001-2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
The full documentation for msguniq is maintained as a Texinfo manual. If
  the info and msguniq programs are properly installed at your
  site, the command
  
  - info msguniq
should give you access to the complete manual.