Compact (Unix)
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− | {{DISPLAYTITLE:compact (Unix)}}'''compact''' is an old Unix file compression utility and compressed file format, similar in function to [[Pack (Unix)|pack]] and [[compress (Unix)|compress]]. It uses | + | :''See [[Compact]] for other formats with that name.'' |
+ | |||
+ | {{DISPLAYTITLE:compact (Unix)}}'''compact''' is an old Unix file compression utility and compressed file format, similar in function to [[Pack (Unix)|pack]] and [[compress (Unix)|compress]]. It uses [[adaptive Huffman coding]]. It was developed by Colin L. McMaster. | ||
It has companion utilities named <code>uncompact</code> and <code>ccat</code>. | It has companion utilities named <code>uncompact</code> and <code>ccat</code>. | ||
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== Software == | == Software == | ||
− | + | * compact (source code) | |
− | * http://www.retro11.de/ouxr/43bsd/usr/src/old/compact/ | + | ** http://www.retro11.de/ouxr/43bsd/usr/src/old/compact/ |
− | * https://www.tuhs.org/Archive/Distributions/UCB/4.3BSD/src.tar.gz → old/compact/* | + | ** https://www.tuhs.org/Archive/Distributions/UCB/4.3BSD/src.tar.gz → old/compact/* |
+ | * [https://github.com/temisu/ancient Ancient] | ||
+ | |||
+ | == Sample files == | ||
+ | * {{DexvertSamples|archive/compact}} | ||
== Links == | == Links == |
Latest revision as of 02:50, 28 December 2023
- See Compact for other formats with that name.
compact is an old Unix file compression utility and compressed file format, similar in function to pack and compress. It uses adaptive Huffman coding. It was developed by Colin L. McMaster.
It has companion utilities named uncompact
and ccat
.
Compacted files have a capitalized ".C" suffix.
Contents |
[edit] Identification
Compacted files most likely start with bytes ff 1f
.
However, 1f ff
is also possible, depending on how the software was configured at compile time. It's not clear what the intent was.
[edit] Software
- compact (source code)
- Ancient