How do you exclude a folder when performing file operations i.e. cp etc.
I would currently use the wild card * to apply file operation to all, but I need to exclude one
Another option might be to temporarily remove permission on the that file /folder.
In Unix you need 'x' permission on a directory to enter it.
edit: obviously this isn't goign to work if you are backing up a live production database - but for excluding your 'interesting images' collection when copying documents to a USB key it's reasoanable.