Problem
Write a script that takes a filename as argument and then compresses and decompresses the file with each of the programs compress, gzip, bzip2, and zip. At each stage, it notes the size of the file before and after compression. Finally, it displays a list showing the compression program, uncompressed size, compressed size, and compression ratio (up to one decimal place). The list should be ordered by the compression achieved, with figures for the most efficient compression featured at the top.