SCO compress LZH
From Just Solve the File Format Problem
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| − | '''SCO compress LZH''' refers to a compressed file format that can be created by the SCO Unix version of the <code>compress</code> utility, as an alternative to the [[compress|standard compress format]]. The LZH format usually has a better compression ratio. The <code>-H</code> option must be used to create such files. | + | '''SCO compress LZH''' refers to a compressed file format that can be created by the SCO Unix version of the <code>compress</code> utility, as an alternative to the [[compress (Unix)|standard compress format]]. The LZH format usually has a better compression ratio. The <code>-H</code> option must be used to create such files. |
== Identification == | == Identification == | ||
Files begin with signature bytes {{magic|1f a0}}. | Files begin with signature bytes {{magic|1f a0}}. | ||
| − | Compare to [[compress#Identification]]. | + | Compare to [[compress (Unix)#Identification]]. |
== Software == | == Software == | ||
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== Editors' notes == | == Editors' notes == | ||
| − | The man page says "Portions of this code used for Lempel-Ziv-Huffman encoding were based on Rahul Dhesi's [[ | + | The man page says "Portions of this code used for Lempel-Ziv-Huffman encoding were based on Rahul Dhesi's [[Zoo]] archiver which was adapted from Haruhiko Okumura's ar archiver". |
Gzip says "The code in this file is directly derived from the public domain 'ar002' written by Haruhiko Okumura." | Gzip says "The code in this file is directly derived from the public domain 'ar002' written by Haruhiko Okumura." | ||
| − | + | Use of {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/AR002.ZIP|ar002}} suggests [[LHA]]'s "lh5" compression. | |
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| + | [[Category:File formats with extension .z]] | ||
[[Category:File formats with case sensitive extensions]] | [[Category:File formats with case sensitive extensions]] | ||
Revision as of 13:27, 16 August 2020
SCO compress LZH refers to a compressed file format that can be created by the SCO Unix version of the compress utility, as an alternative to the standard compress format. The LZH format usually has a better compression ratio. The -H option must be used to create such files.
Contents |
Identification
Files begin with signature bytes 1f a0.
Compare to compress (Unix)#Identification.
Software
- GNU gzip can decompress the format.
Links
Editors' notes
The man page says "Portions of this code used for Lempel-Ziv-Huffman encoding were based on Rahul Dhesi's Zoo archiver which was adapted from Haruhiko Okumura's ar archiver".
Gzip says "The code in this file is directly derived from the public domain 'ar002' written by Haruhiko Okumura."
