phpman > man > ZNEW(1)

Che Dong

⚡ TLDR: ZNEW (tldr-pages)

Recompress files from `.Z` to gzip format.

Recompress a file from `.Z` to gzip format
znew {{path/to/file1.Z}}
Recompress multiple files and display the achieved size reduction % per file
znew -v {{path/to/file1.Z path/to/file2.Z ...}}
Recompress a file using the slowest compression method (for optimal compression)
znew -9 {{path/to/file1.Z}}
Recompress a file, Keeping the `.Z` file if it is smaller than the gzip file
znew -K {{path/to/file1.Z}}

ZNEW(1)                                General Commands Manual                               ZNEW(1)



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 re‐
       compress 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.



                                                                                             ZNEW(1)

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