[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] O command, vi o command, vi O'Reilly, Tim (Unix Power Tools) 2nd oclock application, X11 Open Darwin project open-x11 command OpenOffice.org application OpenSSH program operating systems [See also Mac OS X] accessing files from other operating systems option click positioning osascript command output redirection operator owner of file or directory, changing |