Index[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] [Z] object code open command 2nd Open Directory open-source software about defined Mac OS X use of opening ports for Passive FTP protocol Terminal OpenSSH tool set operators listing of math using in command lines options as part of command line combining command cp command cut command du command link multiple arguments combined with mv command ps command rsync command scp command sudo command used for man page display osascript command 2nd output. [See also stdout ] about standard appending to file discarding command echo command extracting from data piping from any command to mail printing command saving to files taking from files top command ownership about 2nd changing group and user setuid and setgid properties understanding permissions and viewing current directory file |