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ZDIFF(1)		     General Commands Manual			ZDIFF(1)

NAME
     zcmp, zdiff -- compare compressed files

SYNOPSIS
     zcmp [options] file [file2]
     zdiff [options] file [file2]

DESCRIPTION
     zcmp  and	zdiff  are filters that invoke cmp(1) or diff(1) respectively to
     compare compressed files.	Any options that are  specified  are  passed  to
     cmp(1) or diff(1).

     If  only  file1  is  specified, it is compared against a file with the same
     name, but with the extension removed.  When both file1 or file2 are  speci-
     fied, either file may be compressed.

     Extensions handled by gzip(1):
     *	 z, Z,
     *	 gz,
     *	 taz,
     *	 tgz.

     Extensions handled by bzip2(1):
     *	 bz,
     *	 bz2,
     *	 tbz,
     *	 tbz2.

     Extensions handled by xz(1):
     *	 lzma,
     *	 xz,
     *	 tlz,
     *	 txz.

ENVIRONMENT
     TMPDIR  Directory	in  which  to  place temporary files.  If unset, /tmp is
	     used.

FILES
     /tmp/zcmp.XXXXXXXXXX   Temporary file for zcmp.
     /tmp/zdiff.XXXXXXXXXX  Temporary file for zdiff.

SEE ALSO
     bzip2(1), cmp(1), diff(1), gzip(1), xz(1)

CAVEATS
     zcmp and zdiff rely solely on the file extension to determine what  is,  or
     is  not,  a compressed file.  Consequently, the following are not supported
     as arguments:

     -	 directories

     -	 device special files

     -	 filenames indicating the standard input ("-")

FreeBSD 15.1			  May 23, 2011				ZDIFF(1)

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