znew (1) Linux Manual Page
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; implies
-t.
SEE ALSO
gzip(1), zmore(1), zdiff(1), zgrep(1), zforce(1), gzexe(1), compress(1)
BUGS
If the -P option is used, znew does not maintain the timestamp if touch(1) does not support the -r option, and does not maintain permissions if chmod(1) does not support the –reference option.