search all the file extension in the system using shell script
 

i want to make a shell script which search all the file extension present in a system by visiting all the directories.
like if in a folder linux
there are different files named
hello.mp3
heelo.txt
hwed.doc
dsfds.pdf

so the script should get all the file extension present in the folder like mp3 , txt , doc and pdf

Please post your thread once and in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread should be closed because it is a duplicate of http://www.linuxquestions.org/questi...system-937323/.