Pack (Unix)
From Just Solve the File Format Problem
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== Software == | == Software == | ||
| − | * [https://www.gnu.org/software/gzip/ GNU gzip] | + | * [https://www.gnu.org/software/gzip/ GNU gzip] ''[Note: Broken in v1.6 - 1.8]'' |
* [https://www.tuhs.org/cgi-bin/utree.pl?file=V10 Tenth Edition of Unix] → v10src.tar.bz2 → cmd/pack/ - Source code | * [https://www.tuhs.org/cgi-bin/utree.pl?file=V10 Tenth Edition of Unix] → v10src.tar.bz2 → cmd/pack/ - Source code | ||
* illumos: [http://src.illumos.org/source/xref/illumos-gate/usr/src/cmd/pack/ pack], [http://src.illumos.org/source/xref/illumos-gate/usr/src/cmd/unpack/ unpack] - Source code | * illumos: [http://src.illumos.org/source/xref/illumos-gate/usr/src/cmd/pack/ pack], [http://src.illumos.org/source/xref/illumos-gate/usr/src/cmd/unpack/ unpack] - Source code | ||
| − | * https://github.com/koalaman/pack - A modern implementation in Haskell | + | * https://github.com/koalaman/pack - A modern implementation in Haskell (write-only) |
== References == | == References == | ||
Revision as of 17:09, 10 January 2021
pack is a command in Unix-style operating systems to compress files using Huffman coding. Files normally have a lowercase .z extension, appended to their names including any other extension they may already have in their uncompressed versions, e.g., file.txt.z.
Contents |
See also
Identification
Files begin with bytes 0x1F 0x1E.
The gzip source code mentions an "old pack format" that begins with 0x1F 0x1F.
See also compress (Unix)#The 0x1f compression family.
Software
- GNU gzip [Note: Broken in v1.6 - 1.8]
- Tenth Edition of Unix → v10src.tar.bz2 → cmd/pack/ - Source code
- illumos: pack, unpack - Source code
- https://github.com/koalaman/pack - A modern implementation in Haskell (write-only)
