Compress (Unix)

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File Format
Name compress
Ontology
Extension(s) .Z, .z
MIME Type(s) application/x-compress
This article is about a specific file format. For compression in general, see Compression.

compress is a Unix command line utility, and a general-purpose compressed file format. Its compression algorithm is based on LZW.

Contents

Identifiers

The conventional filename extension is a capitalized .Z. We list lowercase .z as well, only because filenames are not always case-sensitive.

Identification

Files begin with bytes 1f 9d.

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