Bash provides many hot keys to ease use. Like

ctrl-l – clear screen
ctrl-r – does a search in the previously given commands so that you don’t have to repeat 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 command you are currently typing in.
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-h – deletes one letter at a time from the command you are typing in.
ctrl-z – puts the currently running process in background, the process can be brought back to run state by using fg command.
esc-p – like ctrl-r lets you search through the previously given commands.
esc-. – gives the last command you typed.

These proved extremely useful for me.