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] tail command 2nd tar command tcpdump command tcsh command Tcsh shell binding command history customization command line completion prompt change defining aliases defining functions finding commands paths redirection and pipelining syntax shell startup versus Bash shell tee command TENEX C shell TERM signal Terminal customization clickable shell scripts dynamic title bars saving window settings script run in custom window title bar kill command launching scrolling viewing text files text editors text files commands detecting duplicates displaying head command less command printing reading tail command editing emacs [See also emacs text editor] graphical-based text editor nano [See also nano text editor] vim [See also vim text editor] sorting text-processing utilities awk text processing 2nd changing file content editing expand command sed stream editor 2nd stripping content unexpand command text, isolating and formatting text-processing utilities awk text processor basics conditionals counting lines editing language processing CSV file scripts text substitution batch editing find command for loop tr command changing file content editing cat command echo command paste command printf command split command expand command sed stream editor basics complex line ranges editing functions highlighting text block line highlight line ranges multiple commands stripping content TextEdit, editing Unix files TextWrangler, editing Unix files tilde (~) absolute pathname shorthand expansion time order, file lists timestamps altering for existing file find command criteria title bars, Terminal customization tlog command tokenization top command touch command, altering file time stamp tr command 2nd traceroute command trivia type command |