I want to do the following.I want to copy from a remote FTP server every day certain files.This FTP directory is mounted.Every day a directory is created and within that directory I need 3 files of the 5dir1dir2dir3I want to copy every day the files with certain extensions  to dir999cp */*.img /dir999 But will that copy every day all files again ? as its a lot i only want to do the changes.
cp from different directory to one directory certain files
cp