NAME    [Toc]    [Back]

     zcmp, zdiff - compare compressed files

SYNOPSIS    [Toc]    [Back]

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

DESCRIPTION    [Toc]    [Back]

     zcmp and zdiff are filters that invoke cmp(1) or diff(1) respectively to
     compare compressed files.  Such files generally have a ``Z''
or ``gz''
     extension (both the compress(1) and gzip(1) formats are supported).  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 specified,
 either file may be compressed.

ENVIRONMENT    [Toc]    [Back]

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

FILES    [Toc]    [Back]

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

SEE ALSO    [Toc]    [Back]

     cmp(1), compress(1), diff(1)

CAVEATS    [Toc]    [Back]

     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 (``-'')

OpenBSD      3.6                           June      23,     2003