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@example
msgcomm [@var{option}] [@var{inputfile}]...
@end example
The @code{msgcomm} program finds messages which are common to two or more
of the specified PO files.
By using the @code{--more-than} option, greater commonality may be requested
before messages are printed. Conversely, the @code{--less-than} option may be
used to specify less commonality before messages are printed (i.e.
@samp{--less-than=2} will only print the unique messages). Translations,
comments and extract comments will be preserved, but only from the first
PO file to define them. File positions from all PO files will be
cumulated.
@subsection Input file location
@table @samp
@item @var{inputfile} @dots{}
Input files.
@item -f @var{file}
@itemx --files-from=@var{file}
Read the names of the input files from @var{file} instead of getting
them from the command line.
@item -D @var{directory}
@itemx --directory=@var{directory}
Add @var{directory} to the list of directories. Source files are
searched relative to this list of directories. The resulting @file{.po}
file will be written relative to the current directory, though.
@end table
If @var{inputfile} is @samp{-}, standard input is read.
@subsection Output file location
@table @samp
@item -o @var{file}
@itemx --output-file=@var{file}
Write output to specified file.
@end table
The results are written to standard output if no output file is specified
or if it is @samp{-}.
@subsection Message selection
@table @samp
@item -< @var{number}
@itemx --less-than=@var{number}
Print messages with less than @var{number} definitions, defaults to infinite
if not set.
@item -> @var{number}
@itemx --more-than=@var{number}
Print messages with more than @var{number} definitions, defaults to 1 if not
set.
@item -u
@itemx --unique
Shorthand for @samp{--less-than=2}. Requests that only unique messages be
printed.
@end table
@subsection Output details
@c --no-escape and --escape omitted on purpose. They are not useful.
@table @samp
@item --force-po
Always write an output file even if it contains no message.
@item -i
@itemx --indent
Write the .po file using indented style.
@item --no-location
Do not write @samp{#: @var{filename}:@var{line}} lines.
@item -n
@itemx --add-location
Generate @samp{#: @var{filename}:@var{line}} lines (default).
@item --strict
Write out a strict Uniforum conforming PO file. Note that this
Uniforum format should be avoided because it doesn't support the
GNU extensions.
@item -w @var{number}
@itemx --width=@var{number}
Set the output page width. Long strings in the output files will be
split across multiple lines in order to ensure that each line's width
(= number of screen columns) is less or equal to the given @var{number}.
@item -s
@itemx --sort-output
Generate sorted output. Note that using this option makes it much harder
for the translator to understand each message's context.
@item -F
@itemx --sort-by-file
Sort output by file location.
@item --omit-header
Don't write header with @samp{msgid ""} entry.
@end table
@subsection Informative output
@table @samp
@item -h
@itemx --help
Display this help and exit.
@item -V
@itemx --version
Output version information and exit.
@end table
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