what does bzip2 do
The bzip2 command is used for compressing and decompressing files. Data compression, also referred to as just compression, is the process of encoding data using fewer bits.Data decompression, or just decompression, is the process of restoring compressed data back into a form in which it is again useful.bzip2 features a high rate of compression together with reasonably fast speed.owever, the-f option forces the overwriting of existing files and also instructs bzip2 to break hard links to files. The-d option tells bzip2 to decompress the specified files. It is the same as the bunzip2 command. Files that were not created by bzip2 will be detected and ignored, and a warning will be issued.