NAME

       ztest - verify integrity of compressed files

SYNOPSIS

       ztest [options] [files]

DESCRIPTION

       Ztest  verifies  the  integrity of the specified compressed files.  Uncompressed files are
       ignored. If no files are specified, the integrity of compressed data  read  from  standard
       input  is  verified.  Data  read  from  standard input must be all in the same compression
       format.

       The supported formats are bzip2, gzip, lzip and xz.

       Note that some xz files lack integrity information, and therefore  can't  be  verified  as
       reliably as the other formats can.

       Exit  status is 0 if all compressed files verify OK, 1 if environmental problems (file not
       found, invalid flags, I/O errors, etc), 2 if any compressed file is corrupt or invalid.

OPTIONS

       -h, --help
              display this help and exit

       -V, --version
              output version information and exit

       -M, --format=<list>
              process only the formats in <list>

       -N, --no-rcfile
              don't read runtime configuration file

       -O, --force-format=<fmt>
              force given format (bz2, gz, lz, xz)

       -q, --quiet
              suppress all messages

       -r, --recursive
              operate recursively on directories

       -v, --verbose
              be verbose (a 2nd -v gives more)

       --bz2=<command>
              set compressor and options for bzip2 format

       --gz=<command>
              set compressor and options for gzip format

       --lz=<command>
              set compressor and options for lzip format

       --xz=<command>
              set compressor and options for xz format

REPORTING BUGS

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

COPYRIGHT

       Copyright © 2015  Antonio  Diaz  Diaz.   License  GPLv2+:  GNU  GPL  version  2  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.