Compress - Revision history

Dexvertbot: Undo revision 47339 by Dexvertbot (talk)

2023-12-28T04:57:03Z

Undo revision 47339 by Dexvertbot (talk)

Dexvertbot: Change telparia.com samples link to template

2023-12-28T04:55:25Z

Change telparia.com samples link to template

Jsummers: Jsummers moved page Compress to Compress (Unix): For consistency with pack and compact, and because compress is such a common word. Might make a disambig. page someday.

2020-02-29T12:50:39Z

Jsummers moved page Compress to Compress (Unix): For consistency with pack and compact, and because compress is such a common word. Might make a disambig. page someday.

New page

#REDIRECT [[Compress (Unix)]]

@@ Line 1: / Line 1: @@
-{{FormatInfo
+#REDIRECT [[Compress (Unix)]]
-|name=compress (Unix)
-|formattype=electronic
-|subcat=Compression
-|extensions={{ext|Z}}
-|mimetypes={{mimetype|application/x-compress}}
-|wikidata={{wikidata|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]].
-−
-== Identifiers ==
-The conventional filename extension is a capitalized '''.Z'''.
-−
-== Identification ==
-Files begin with bytes {{magic|1f 9d}}.
-−
-== See also ==
-* [[SCO compress LZH]] - variant
-* [[Quasijarus Strong Compression]] - variant
-* [[pack (Unix)]] - predecessor
-* [[compact (Unix)]] - predecessor
-* [[Squash (RISC OS)]]
-* [[compact (Gene Olson)]]
-−
-Formats that could be considered to be the successors of ''compress'' include [[Freeze/Melt]], and (especially) [[Gzip]].
-−
-== The 0x1f compression family ==
-There are several compressed file formats, with similar features, that begin with byte value {{magic|0x1f}} (octal 037; decimal 31). We arbitrarily choose ''compress'' as the representative example, and list the formats here.
-−
-{| class="wikitable"
-! Signature (hex) !! Format
-|-
-| <code>1f 1e</code> || [[pack (Unix)]]
-|-
-| <code>1f 1f</code> || [[pack (Unix)]] - old format
-|-
-| <code>1f 8b</code> || [[gzip]]
-|-
-| <code>1f 9d</code> || compress
-|-
-| <code>1f 9e</code> || [[Freeze/Melt]] - old format
-|-
-| <code>1f 9f</code> || [[Freeze/Melt]] - new format
-|-
-| <code>1f a0</code> || [[SCO compress LZH]]
-|-
-| <code>1f a1</code> || [[Quasijarus Strong Compression]]
-|-
-| <code>1f ff</code> or <code>ff 1f</code> || [[compact (Unix)]]
-|}
-−
-== Software ==
-* [https://vapier.github.io/ncompress/ ncompress]
-* [https://www.gnu.org/software/gzip/ Gzip]
-* [[7-Zip]]
-* [https://github.com/vapier/liblzw liblzw]
-* [http://web.archive.org/web/20130702195528/http://www.willus.com/archive/unixcmds.zip Windows port of Compress utility]
-* {{Deark}}
-* [https://github.com/temisu/ancient Ancient]
-−
-== Sample files ==
-* {{DexvertSamples|archive/compress}}
-−
-== External links ==
-* [[Wikipedia:Compress (software)|Wikipedia article]]
-−
-[[Category:File formats with extension .z]]
-[[Category:File formats with case sensitive extensions]]
-{{DISPLAYTITLE:compress (Unix)}}

← Older revision		Revision as of 04:55, 28 December 2023
Line 1:		Line 1:
−	~~#REDIRECT~~ [[~~Compress~~ (Unix)]]	+	{{FormatInfo
		+	\|name=compress (Unix)
		+	\|formattype=electronic
		+	\|subcat=Compression
		+	\|extensions={{ext\|Z}}
		+	\|mimetypes={{mimetype\|application/x-compress}}
		+	\|wikidata={{wikidata\|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]].
		+
		+	== Identifiers ==
		+	The conventional filename extension is a capitalized '''.Z'''.
		+
		+	== Identification ==
		+	Files begin with bytes {{magic\|1f 9d}}.
		+
		+	== See also ==
		+	* [[SCO compress LZH]] - variant
		+	* [[Quasijarus Strong Compression]] - variant
		+	* [[pack (Unix)]] - predecessor
		+	* [[compact (Unix)]] - predecessor
		+	* [[Squash (RISC OS)]]
		+	* [[compact (Gene Olson)]]
		+
		+	Formats that could be considered to be the successors of ''compress'' include [[Freeze/Melt]], and (especially) [[Gzip]].
		+
		+	== The 0x1f compression family ==
		+	There are several compressed file formats, with similar features, that begin with byte value {{magic\|0x1f}} (octal 037; decimal 31). We arbitrarily choose ''compress'' as the representative example, and list the formats here.
		+
		+	{\| class="wikitable"
		+	! Signature (hex) !! Format
		+	\|-
		+	\| <code>1f 1e</code> \|\| [[pack (Unix)]]
		+	\|-
		+	\| <code>1f 1f</code> \|\| [[pack (Unix)]] - old format
		+	\|-
		+	\| <code>1f 8b</code> \|\| [[gzip]]
		+	\|-
		+	\| <code>1f 9d</code> \|\| compress
		+	\|-
		+	\| <code>1f 9e</code> \|\| [[Freeze/Melt]] - old format
		+	\|-
		+	\| <code>1f 9f</code> \|\| [[Freeze/Melt]] - new format
		+	\|-
		+	\| <code>1f a0</code> \|\| [[SCO compress LZH]]
		+	\|-
		+	\| <code>1f a1</code> \|\| [[Quasijarus Strong Compression]]
		+	\|-
		+	\| <code>1f ff</code> or <code>ff 1f</code> \|\| [[compact (Unix)]]
		+	\|}
		+
		+	== Software ==
		+	* [https://vapier.github.io/ncompress/ ncompress]
		+	* [https://www.gnu.org/software/gzip/ Gzip]
		+	* [[7-Zip]]
		+	* [https://github.com/vapier/liblzw liblzw]
		+	* [http://web.archive.org/web/20130702195528/http://www.willus.com/archive/unixcmds.zip Windows port of Compress utility]
		+	* {{Deark}}
		+	* [https://github.com/temisu/ancient Ancient]
		+
		+	== Sample files ==
		+	* {{DexvertSamples\|archive/compress}}
		+
		+	== External links ==
		+	* [[Wikipedia:Compress (software)\|Wikipedia article]]
		+
		+	[[Category:File formats with extension .z]]
		+	[[Category:File formats with case sensitive extensions]]
		+	{{DISPLAYTITLE:compress (Unix)}}