Cpio
From Just Solve the File Format Problem
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* http://ftp.gnu.org/gnu/tar/tar-1.27.cpio.gz | * http://ftp.gnu.org/gnu/tar/tar-1.27.cpio.gz | ||
* https://telparia.com/fileFormatSamples/archive/cpio/ | * https://telparia.com/fileFormatSamples/archive/cpio/ | ||
| + | * [https://www.clamav.net/downloads ClamAV Download] → [https://www.clamav.net/downloads/production/clamav-0.103.8.tar.gz 0.103.8 Source] → test/.split → split.clam.*.cpio?? | ||
== Other links == | == Other links == | ||
Revision as of 01:47, 1 March 2023
cpio is a non-compressed file archive format for Unix-style systems. It was originally intended for tape archiving, similar to the Tape Archive (tar) format.
Contents |
Examples
To extract files, using the command line utility:
$ cpio -idmv -I example.cpio
To list files:
$ cpio -it -I example.cpio
Identification
A cpio archive begins with one of the following signatures:
-
0x71 0xC7 -
0xC7 0x71 -
'0' '7' '0' '7'
Be aware that there are afio extensions to cpio format that are not supported by most cpio utilities. For one thing, if most of the filenames end in ".z", it's probably a compressed afio archive.
Specifications
Software
Sample files
- http://ftp.gnu.org/gnu/tar/tar-1.27.cpio.gz
- https://telparia.com/fileFormatSamples/archive/cpio/
- ClamAV Download → 0.103.8 Source → test/.split → split.clam.*.cpio??
Other links
- Wikipedia article
- cpio utility man page
- GNU cpio manual
- tar vs. cpio
- ForensicsWiki entry (no useful detail)
