1.1 What do the following commands do? You can use command man to check the command description. cd ps ps -u $(whoami) kill 1.2 What does the following script do? myvar=0 while [$myvar -le 10 ] do done echo $myvar myvar $($myvar + 1)) 1.3 What does the following script do? for myfile in ../?????? do if [ -d "$myfile"] then echo "$myfile (dir)". else echo "$myfile" fi done