until [ “$selection” -eq “0” ]; do
echo ” Program Menu “
echo ” 1. Display Free disk space “
echo ” 2. Display Free memory “
echo ” 3. Disk Usage “
echo ” 4. List Your Processes “
echo ” 5. Who is connected to the system? “
echo ” 0. Exit “
read selection
case $selection in
1 ) df
;;
2 ) free
;;
3 ) du
;;
4 ) ps
;;
5 ) who
;;
0 ) exit
;;
* ) echo ” Please enter correct choice “
esac
done
echo ” Program Menu “
echo ” 1. Display Free disk space “
echo ” 2. Display Free memory “
echo ” 3. Disk Usage “
echo ” 4. List Your Processes “
echo ” 5. Who is connected to the system? “
echo ” 0. Exit “
read selection
case $selection in
1 ) df
;;
2 ) free
;;
3 ) du
;;
4 ) ps
;;
5 ) who
;;
0 ) exit
;;
* ) echo ” Please enter correct choice “
esac
done
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