As you are using less to display a fi le, which commands do you use to perform the following actions? Go forward one screenful; go backward one screenful; go to the fi rst line; go to the last line;...

As you are using less to display a fi le, which commands do you use to perform the following actions? Go forward one screenful; go backward one screenful; go to the fi rst line; go to the last line; search forward; search backward; display help; quit the program.