Decompress most any compressed file without having to remember the arcane switches for each file type!
Hmm... Was it tar -xzf for tar files? Or is that for .gzip? Am I doing this right for this .zip file? What about .xz files?
Who cares! Just run decompress filename.whatever and your file will be decompressed into the current directory without having to remember the necessary switches for each type of file!
Name the file decompress and place it in /usr/local/bin so you can run it from any directory.