Hi experts, I am trying to remove a large file from my desktop (1GB). it was the old user account from my Girlfriends laptop we put there as a backup when she switched computers. when i put it in the trash i cannot delete the file, it says that all of files are locked. when i try to change ownership or unlock the files, it says i do not have permisson for some of the files. is there a handy terminal line to force this issue? I am the admin on my computer. i tried rm -rf ~/.trash but again it listed many errors about lacking permission and did not delete the file. please help. thank you.