ctrl-l — Clears the screen
ctrl-r — Does a search in the previously given command so that you dont have to type a long command
ctrl-u — Clears the typing before the hotkey
ctrl-a — Takes you to the beginning of the command you are currently typing
ctrl-e — Takes you to the end of the commmand you are currently typing
esc-b — Takes you back by one word while typing a command
ctrl-c — Kills the current command or process
ctrl-d — Kills the Shell
ctrl-z — pauses a currently running process so that the command promt appears