p7zip is a quick port of 7z.exe and 7za.exe (command line
version of 7zip, see www.7-zip.org) for Unix. 7-Zip is a
file archiver with highest compression ratio. Since 4.10,
p7zip (like 7-zip) supports little-endian and big-endian
machines.

WWW: http://p7zip.sourceforge.net/
