Linux Command Library
commands
Commands
basic
Basic
tips
Tips

znew

recompress .Z files to .gz files

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

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.

-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.

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

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.

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