---
name: "znew"
section: "1"
platform: "linux"
package: "gzip"
version: "1.15-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "freebsd", "openbsd"]
url: "https://new.carta.tech/znew"
---

# znew(1)

recompress .Z files to .gz files

## NAME

znew -   recompress .Z files to .gz files

## SYNOPSIS

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

## 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

- **-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).

- **-K**

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

## SEE ALSO

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