Here i will collect all the code i write, so that you can enjoy it!

mp3recode.sh: it's a simple mp3recoder for entire directory. I created it, because sometimes my music has very high bitrate, and I want to save disk space. So this compress all files in a directory, and leaves the original file in, named OLD_$name_of_original_file. If you stop the process with CTRL-C, the next time it will continue the process (actually, the file it was processing has to be restarted).