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 specified, 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),
compress(1),
diff(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
(``-'')