znew(1) General Commands Manual znew(1)
NAME
znew - recompress .Z files to .gz files
SYNOPSIS
znew [ -ftv9PK] [ name.Z ... ]
DESCRIPTION
The Znew command 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).
-K Keep a .Z file when it is smaller than the .gz file; implies -t.
SEE ALSO
gzip(1), zmore(1), zdiff(1), zgrep(1), zforce(1), gzexe(1), compress(1)
znew(1)
gzip 1.15 - Generated Wed Sep 23 14:51:15 CDT 2026