NAME

       Zcmp - decompress and compare two files byte by byte

SYNOPSIS

       zcmp [options] file1 [file2]

DESCRIPTION

       Zcmp  compares  two  files  ("-" means standard input), and if they differ, tells the first byte and line
       number where they differ. Bytes and lines are numbered starting with 1. If any given file is  compressed,
       its  uncompressed  content  is used. Compressed files are uncompressed on the fly; no temporary files are
       created.  The supported compressors are bzip2, gzip, lzip and xz.

       Compares <file1> to <file2>. If <file2> is omitted zcmp tries the following: If  <file1>  is  compressed,
       compares  <file1>  to  the file with the corresponding decompressed file name (removes the extension from
       <file1>).   If  <file1>  is  not  compressed,  compares  <file1>  to   the   uncompressed   contents   of
       <file1>.[bz2|gz|lz|xz]  (the first one that is found).  If no suitable file is found, compares <file1> to
       data read from standard input.

       Exit status is 0 if inputs are identical, 1 if different, 2 if trouble.

OPTIONS

       -h, --help
              display this help and exit

       -V, --version
              output version information and exit

       -b, --print-bytes
              print differing bytes

       -i, --ignore-initial=<n>[,<n2>]
              ignore differences in the first <n> bytes

       -l, --list
              list position, value of all differing bytes

       -n, --bytes=<n>
              compare at most <n> bytes

       -q, --quiet
              suppress all messages

       -s, --silent
              (same as --quiet)

       -v, --verbose
              verbose mode (same as --list)

       Numbers may be followed by a multiplier: k = kB = 10^3 = 1000, Ki = KiB = 2^10 = 1024, M  =  10^6,  Mi  =
       2^20, G = 10^9, Gi = 2^30, etc...

REPORTING BUGS

       Report bugs to zutils-bug@nongnu.org
       Zutils home page: http://www.nongnu.org/zutils/zutils.html

COPYRIGHT

       Copyright   ©   2011   Antonio   Diaz   Diaz.    License   GPLv3+:   GNU   GPL   version   3   or   later
       <http://gnu.org/licenses/gpl.html>
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to  the  extent
       permitted by law.

Zcmp (zutils) 0.9                                 January 2011                                           ZCMP(1)