ZDIFF(1) BSD Reference Manual ZDIFF(1)NAME
zcmp, zdiff - compare compressed files
SYNOPSISzcmp [options] file1 [file2]
zdiff [options] file1 [file2]
DESCRIPTIONzcmp and zdiff are filters that invoke cmp(1) or diff(1) respectively to
compare compressed files. Such files generally have a "Z" or "gz" exten-
sion (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 speci-
fied, 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 ALSOcmp(1), compress(1), diff(1), gzip(1)CAVEATSzcmp 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 ('-')
MirOS BSD #10-current June 23, 2003 1