ZDIFF(1) - General Commands Manual

ZDIFF(1) - General Commands Manual #

ZDIFF(1) - General Commands Manual

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 #

cmp(1), compress(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 (’-')

OpenBSD 7.5 - January 25, 2019