NAME
zcmp, zdiff
— compare compressed
files
SYNOPSIS
zcmp |
[options] file1 [file2] |
zdiff |
[options] file1 [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
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 (‘-’)