znew

NAME
  znew -   recompress .Z files to .gz files

SYNOPSIS
  znew [ -ftv9PK] [ name.Z ...  ]

DESCRIPTION
  Znew recompresses files from .Z (compress) format to .gz
  (gzip) format.  If you want to recompress a file already in
  gzip format, rename the file to force a .Z extension then
  apply znew.

OPTIONS
  -f   Force recompression from .Z to .gz format even if a .gz
	   file already exists.

  -t   Tests the new files before deleting originals.

  -v   Verbose. Display the name and percentage reduction for
	   each file compressed.

  -9   Use the slowest compression method (optimal
	   compression).

  -P   Use pipes for the conversion to reduce disk space
	   usage.

  -K   Keep a .Z file when it is smaller than the .gz file

SEE ALSO
  gzip(1), zmore(1), zdiff(1), zgrep(1), zforce(1), gzexe(1),
  compress(1)

BUGS
  Znew does not maintain the time stamp with the -P option if
  cpmod(1) is not available and touch(1) does not support the
  -r option.