Create and Extract .bz2 and .gz files

#apt-get install bzip2

Installing bzip2 in ubuntu

sudo apt-get install bzip2

Uncompressing a bzip2 File Using bunzip2 in Debian

To uncompress a bzip2 file, execute the following command

#bunzip2 filename.txt.bz2 (where filename.txt.bz2 is the name of the file you wish to uncompress)

Reference: http://www.debianadmin.com/create-and-extract-bz2-and-gz-files.html