pigz --version (return code: 0)
pigz 2.4
pigz --help (return code: 0)
Usage: pigz [options] [files ...]
will compress files in place, adding the suffix '.gz'. If no files are
specified, stdin will be compressed to stdout. pigz does what gzip does,
but spreads the work over multiple processors and cores when compressing.
Options:
-0 to -9, -11 Compression level (level 11, zopfli, is much slower)
--fast, --best Compression levels 1 and 9 respectively
-b, --blocksize mmm Set compression block size to mmmK (default 128K)
-c, --stdout Write all processed output to stdout (won't delete)
-d, --decompress Decompress the compressed input
-f, --force Force overwrite, compress .gz, links, and to terminal
-F --first Do iterations first, before block split for -11
-h, --help Display a help screen and quit
-i, --independent Compress blocks independently for damage recovery
-I, --iterations n Number of iterations for -11 optimization
-J, --maxsplits n Maximum number of split blocks for -11
-k, --keep Do not delete original file after processing
-K, --zip Compress to PKWare zip (.zip) single entry format
-l, --list List the contents of the compressed input
-L, --license Display the pigz license and quit
-m, --no-time Do not store or restore mod time
-M, --time Store or restore mod time
-n, --no-name Do not store or restore file name or mod time
-N, --name Store or restore file name and mod time
-O --oneblock Do not split into smaller blocks for -11
-p, --processes n Allow up to n compression threads (default is the
number of online processors, or 8 if unknown)
-q, --quiet Print no messages, even on error
-r, --recursive Process the contents of all subdirectories
-R, --rsyncable Input-determined block locations for rsync
-S, --suffix .sss Use suffix .sss instead of .gz (for compression)
-t, --test Test the integrity of the compressed input
-v, --verbose Provide more verbose output
-V --version Show the version of pigz
-Y --synchronous Force output file write to permanent storage
-z, --zlib Compress to zlib (.zz) instead of gzip format
-- All arguments after "--" are treated as files