# SD212 HW 04

## [name] Type your name on the next line


## [Q1]
> What happens if we enter an incorrect command in the terminal?

> (a) The computer crashes
> (b) The terminal exits immediately
> (c) You see an error message with what line the error was on, then
>     the terminal exits
> (d) bash gives an error message and then keeps going with another
>     prompt like nothing even happened

> (Give **just the letter** of the correct choice.)



## [Q2]
> What command is used to show the files in the current directory?



## [Q3]
> What command is used to quit the terminal?



## [Q4]
> Which of these are NOT valid commands?

> (a) `ls`
> (b) `bye`
> (c) `cd`
> (d) `date`
> (e) `pwn`

> (Enter **all the letters** of the correct responses.)