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ZDIFF(1) DragonFly 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. 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 spec-
ified, either file may be compressed.
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
cmp(1), diff(1), gzip(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 (``-'')
DragonFly 3.5 June 23, 2003 DragonFly 3.5