---
name: "prezip"
section: "1"
platform: "linux"
package: "aspell"
version: "0.60.8.1-4"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/prezip"
---

# prezip(1)

prefix delta compressor for Aspell

## NAME

prezip, preunzip, precat - prefix delta compressor for Aspell

## SYNOPSIS

precat \[-dzhLV\] \[-cfksSq\] \[file ...\]

## DESCRIPTION

**prezip** is a prefix delta compressor. It is *not* a general purpose compressor and should only be used on sorted word lists or other similar text files. It will likely *increase* the size of binary data.

If invoked as **prezip**, the default action is to compress. If invoked as **preunzip**, the default action is to decompress. If invoked as **precat**, the default action is to decompress to stdout.

If no file names are given then **prezip** will compress or decompress from the standard input to the standard output. Short flags can be combined so that "-c **-s**" is the same as "-cs".

## OPTIONS

- **-h** **--help**

  display help

- **-d** **--decompress**

  force decompression

- **-z** **--compress**

  dorce compression

- **-L** **--license**

  display software license

- **-V** **--version**

  display version

- **-c** **--stdout**

  decompress to standard output

- **-f** **--force**

  force

- **-k** **--keep**

  keep input files

- **-s** **--sort**

  sort and remove duplicates before compressing

- **-S** **--nocwl**

  do not rename .wl suffix to .cwl (use .wl.pz instead)

- **-q** **--quiet**

  suppress all warnings

## AUTHOR

This manual page was written by Brian Nelson \<pyro@debian.org\> based on the output of help2man. Aspell is Copyright © 2002–2025 Kevin Atkinson.