Write the commands that generated the outputs below.

Create a text file named usedShells.txt that contains only the login$-$names and the default Shells used

by all users in the file passwd

Write the command that applies the file permissions $rwx,rw-,rw-$to the file usedShells.txt$.$

$($a$)$ Write the commands that generated the outputs below. $($b$)$ What is the difference between the

outputs for commands $1.$ And $2.$

$($a$)1.$

$($b$)$