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Man Pages


Manual Reference Pages  -  ZCMP (1)

NAME

zcmp, zdiff - compare compressed files

CONTENTS

Synopsis
Description
Environment
Files
See Also
Caveats

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. 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.

Extensions handled by gzip(1):

  • z, Z,
  • gz,
  • taz,
  • tgz.

Extensions handled by bzip2(1):

  • bz,
  • bz2,
  • tbz,
  • tbz2.

Extensions handled by xz(1):

  • lzma,
  • xz,
  • tlz,
  • txz.

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

bzip2(1), cmp(1), diff(1), gzip(1), xz(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 ("-")
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