You can use aliases to decrease the amount of typing you need to do to getcommands you commonly use. Examples of fairly popular aliases include (inBourne shell style, as in /bin/sh, bash, ksh, and zsh): alias lf="ls -FA" alias ll="ls -lA" alias su="su -m"In csh or tcsh, these would be alias lf ls -FA alias ll ls -lA alias su su -mTo remove an alias, you can usually use 'unalias aliasname'. To list allaliases, you can usually type just 'alias'.