OS Manuals

/usr/bin/unzck

A file format designed for highly efficient deltas while maintaining good compression

From zchunk 1.5.5-r2 (enterprise-packages), captured 2026-11-08 by running unzck --help (exit 0). permalink

Usage: unzck [OPTION...] <file>
unzck - Decompress a zchunk file

  -c, --stdout               Direct output to stdout
      --dict                 Only extract the dictionary (can't be run with
                             --header)
      --header               Only extract the header (can't be run with --dict)

  -v, --verbose              Increase verbosity (can be specified more than
                             once for debugging)
  -?, --help                 Give this help list
      --usage                Give a short usage message
  -V, --version              Show program version
Options (7)
OptionDescriptionSource
-c, --stdoutExtract the data to the standard output stream, do not write it to a file.help + man
--dictOnly extract the dictionary (can't be run withhelp + man
--headerOnly extract the header (can't be run with --dict)help
-v, --verboseIncrease verbosity (can be specified more than once for debugging)help + man
-?, --helpDisplay program usage information and exit.help + man
--usageDisplay brief program usage information and exit.help + man
-V, --versionDisplay program version information and exit.help + man
Exit status (1) from the manual page
0success

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.