Here is a simple search utility i wrote in python.it makes use of the modules os,os.path and re for the surfing through the filesystem and to match the files.The name of the file to find is given as an argument,ie
python search <filename_u_want_to_find>
It uses sys.argv to acces the arguments given.give ‘–help’ as an argument to display help.
python search –help
You can download the script from here