What is the absolute path of the ls command? Use the which command to find it$.$

$/$bin$/$ls

$(2)$ What is the real path of $/$sys$/$dev$/$block$/7$:$0?$ Use the realpath command to find out.

$/$sys$/$devices$/$virtual$/$block$/$loop$0$

$3$ What is the name of the file starting with the letter $z$ in the $/$ sbin directory?

Is z$?**$

$4$ If you are in your home directory $($pwd prints $/$home$/$user$)$ what cd command should you write using a relative path to go to $/$sys $?($don$\text{'}$t put a $/$ at the

end of your answer$).$

cd $.././$sys

just need the answer to the $3$rd question please