znew (1) - Linux Manuals

znew: recompress .Z files to .gz files

Command to display znew manual in Linux: $ man 1 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; implies -t.

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.