Compress (Unix)

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{{FormatInfo
 
{{FormatInfo
|name=compress
+
|name=compress (Unix)
 
|formattype=electronic
 
|formattype=electronic
 
|subcat=Compression
 
|subcat=Compression
|extensions={{ext|Z}}, {{ext|z}}
+
|extensions={{ext|Z}}
 
|mimetypes={{mimetype|application/x-compress}}
 
|mimetypes={{mimetype|application/x-compress}}
 +
|wikidata={{wikidata|Q29209269}}
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|released=~1984
 
}}
 
}}
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:''This article is about a specific file format. For compression in general, see [[Compression]].''
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'''compress''' is a Unix command line utility, and a general-purpose compressed file format. Its compression algorithm is based on [[LZW]].
 
'''compress''' is a Unix command line utility, and a general-purpose compressed file format. Its compression algorithm is based on [[LZW]].
  
 
== Identifiers ==
 
== Identifiers ==
The conventional filename extension is a capitalized '''.Z'''. We list lowercase '''.z''' as well, only because filenames are not always case-sensitive.
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The conventional filename extension is a capitalized '''.Z'''.
  
 
== Identification ==
 
== Identification ==
Files begin with bytes <code>1F 9D</code>.
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Files begin with bytes {{magic|1f 9d}}.
  
 
== See also ==
 
== See also ==
* [[pack]] - A compressed file format with a similar filename extension.
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* [[SCO compress LZH]]
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* [[Quasijarus Strong Compression]]
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* [[pack (Unix)]]
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* [[compact (Unix)]]
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* [[Squash (RISC OS)]]
  
 
== Software ==
 
== Software ==
* [http://www.gnu.org/software/gzip/ gzip] can uncompress '''compress'''ed files.
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* [https://github.com/vapier/ncompress ncompress]
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* [https://www.gnu.org/software/gzip/ Gzip] can uncompress '''.Z''' files.
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* [[7-Zip]]
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* [https://github.com/vapier/liblzw liblzw]
 
* [http://web.archive.org/web/20130702195528/http://www.willus.com/archive/unixcmds.zip Windows port of Compress utility]
 
* [http://web.archive.org/web/20130702195528/http://www.willus.com/archive/unixcmds.zip Windows port of Compress utility]
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* {{Deark}}
  
 
== External links ==
 
== External links ==
 
* [[Wikipedia:Compress|Wikipedia article]]
 
* [[Wikipedia:Compress|Wikipedia article]]
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[[Category:File formats with extension .z]]
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[[Category:File formats with case sensitive extensions]]
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{{DISPLAYTITLE:compress (Unix)}}

Revision as of 12:34, 7 July 2020

File Format
Name compress (Unix)
Ontology
Extension(s) .Z
MIME Type(s) application/x-compress
Wikidata ID Q29209269
Released ~1984
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.

Identification

Files begin with bytes 1f 9d.

See also

Software

External links

Personal tools
Namespaces

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