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
-t Tests the new files before deleting originals.
-v Verbose. Display the name and percentage reduction for each file
-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
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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