Hi there. im creating a shell script which helps me perform simple functions when i use it, but there are still two functions which i cannot figure out yet.

1) how can I count the number of occurences of a certain file within the whole file system? (filename supplied as an argument.)

2) How can I list all the files in the current directory whose contents are identical to a filename supplied as an argument.

It may be simple but I am really stuck on this and I would be glad of some help.

Thanks very much.