ZNEW(1) General Commands Manual ZNEW(1)

# [NAME](#NAME)

znew - recompress .Z files to .gz files

# [SYNOPSIS](#SYNOPSIS)

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

# [DESCRIPTION](#DESCRIPTION)

The **Znew** command 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](#OPTIONS)

[**-f**](#f)

Force recompression from .Z to .gz format even if a .gz file already exists.

[**-t**](#t)

Tests the new files before deleting originals.

[**-v**](#v)

Verbose. Display the name and percentage reduction for each file compressed.

**-9**

Use the slowest compression method (optimal compression).

[**-P**](#P)

Use pipes for the conversion to reduce disk space usage.

[**-K**](#K)

Keep a .Z file when it is smaller than the .gz file; implies **-t**.

# [SEE ALSO](#SEE_ALSO)

[**gzip**(1)](/man/os/gzip/gzip.1), [**zmore**(1)](/man/os/gzip/zmore.1), [**zdiff**(1)](/man/os/gzip/zdiff.1), [**zgrep**(1)](/man/os/gzip/zgrep.1), [**zforce**(1)](/man/os/gzip/zforce.1), [**gzexe**(1)](/man/os/gzip/gzexe.1), [**compress(1)**](/man/os/gzip/compress.1)

# [BUGS](#BUGS)

If the **-P** option is used, **znew** does not maintain the timestamp if [**touch**(1)](/man/os/gzip/touch.1) does not support the **-r** option, and does not maintain permissions if [**chmod**(1)](/man/os/gzip/chmod.1) does not support the **--reference** option.

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Document: znew(1) from gzip 1.14-r9 (Chainguard OS)
Source: https://git.savannah.gnu.org/git/gzip.git