p7zip-full 4.58~dfsg.1-1 (i386 binary) in ubuntu intrepid

 p7zip is the Unix port of 7-Zip, a file archiver that archives with
 very high compression ratios.
 .
 p7zip-full provides:
  - /usr/bin/7za
     a standalone version of the 7-zip tool that handles 7z archives
     (implementation of the LZMA compression algorithm) and some other
     formats.
  - /usr/bin/7z
     not only does it handle 7z but also ZIP, Zip64, CAB, RAR, ARJ,
     GZIP, BZIP2, TAR, CPIO, RPM, ISO and DEB archives. 7z compression
     is 30-50% better than ZIP compression.
 .
 p7zip provides 7zr, a light version of 7za, and p7zip a gzip like
 wrapper around 7zr.