Bzip2

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== Identification ==
 
== Identification ==
 
Files begin with bytes <code>42 5A 68 ?? 31 41 59 26 53 59</code>.
 
Files begin with bytes <code>42 5A 68 ?? 31 41 59 26 53 59</code>.
 +
 +
Note that part of the signature is a [[Binary-coded decimal|BCD]] representation of the digits of π.
  
 
== Software ==
 
== Software ==
Line 18: Line 20:
  
 
== See also ==
 
== See also ==
 +
* [[Burrows–Wheeler transform]]
 
* [[bzip]]
 
* [[bzip]]
  
 
== Links ==
 
== Links ==
 
* [[Wikipedia:Bzip2|Wikipedia article]]
 
* [[Wikipedia:Bzip2|Wikipedia article]]
 +
* [https://twitter.com/angealbertini/status/537704386080694274/photo/1 Chart of format details]
 +
* [https://lwn.net/Articles/762264/ bzip.org changes hands]

Revision as of 13:12, 9 October 2018

File Format
Name bzip2
Ontology
Extension(s) .bz2
MIME Type(s) application/x-bzip2
PRONOM x-fmt/268
Released 1997

bzip2 is a data compression algorithm and compressed file format.

Contents

Identification

Files begin with bytes 42 5A 68 ?? 31 41 59 26 53 59.

Note that part of the signature is a BCD representation of the digits of π.

Software

See also

Links

Personal tools
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