Finding a file in Terminal

I left the country for 7 months and when I came back someone had moved some files around on my computer. I am looking for one folder in-particular but for the life of me can't remember the name of it right now. I have tried using finder but had no luck. I know the .extension that it uses and I was wondering if I can search for a file in Terminal by the extension it uses. Anything helps. Thanks for your time!

Have you tried using spotlight?

What kind of file is it? If it's a document, you can use spotlight to search for a keyword within the document.

Probably another thing I should have mentioned is that I used LameSecure to lock the folder. It is just a folder with a bunch of music files that I have created in Logic. I can't find the folder in spotlight because I forget the name and I can't search for the contents because LameSecure hides them from spotlight. They aren't hidden in terminal, however, so if I could just figure out how to search for certain extensions on the complete hard drive in terminal I would be in good shape. Thanks for the response!

I only know how to use the mdfind command in the terminal, but AFAIK that uses spotlight technology anyway.

You could try it. Type this:

mdfind "kMDItemFSName = [name]"

replace [name] with the actual partial filename or extension you know

If you know the directory roughly, you could try

mdfind -onlyin [name of directory]

You can use locate to do the job.

First, update the locate database:
Second, use locate to find the files: This would search for all html files on your computer. Replace as necessary.

The find command may be helpful here. Do a 'man find' in the terminal. Near the end are some examples.

To find files with extensions '.mov' from the very top directory down, you would do;