Generate a menu to ask the system administrator for the task that he or she would like to see performed. The available tasks are as follows: Create a Linux group. Drop a Linux group. Create a user. Drop a user. Prompt the user for the choice, and perform the system command. In addition, check to make sure that before creating either the user or the group that neither already exists; if it does already exist, print out the existing user ID, comment field, and home directory locations from the password file. Solution #!/bin/bash choice= until [ \"$choice\" = \"0\"]; do echo \"\" echo \"MENU\" echo “ What you want to do?” echo \"1 – Create Linux group\" echo \"2 – Drop Linux group\" echo \"3 – Create a user\" echo \"4 – Drop a user\" echo \"\" echo \"0 - Exit program\" echo \"\" echo -n \"Enter Choice:\" read choice echo \"\" case $choice in 1 ) echo “Creates a New Group” groupadd –g linux echo “Group created” fi ;; 2 ) echo \"This drops the group\" echo \"Please enter group name\" read groupname echo “Group cannot be deleted” fi ;; 3 ) echo \"Creates a user\" echo \"Please enter username:\" read username 4 ) echo “drop a user” echo \"Please enter user name\" read username fi ;; 0 ) exit;; * ) echo \"Please enter 1,2,3,4 or 0\" esac done .

1. Generate a menu to ask the system administrator for the task that he or she would like to see
performed. The available tasks are as follows: Create a Linux group. Drop a Linux group. Create
a user. Drop a user. Prompt the user for the choice, and perform the system command. In
addition, check to make sure that before creating either the user or the group that neither already
exists; if it does already exist, print out the existing user ID, comment field, and home directory
locations from the password file.
Solution
#!/bin/bash
choice=
until [ "$choice" = "0"]; do
echo ""
echo "MENU"
echo “ What you want to do?―
echo "1 – Create Linux group"
echo "2 – Drop Linux group"
echo "3 – Create a user"
echo "4 – Drop a user"
echo ""
echo "0 - Exit program"
echo ""
echo -n "Enter Choice:"

2. read choice
echo ""
case $choice in
1 ) echo “Creates a New Group―
groupadd –g linux
echo “Group created―
fi ;;
2 ) echo "This drops the group"
echo "Please enter group name"
read groupname
echo “Group cannot be deleted―
fi ;;
3 ) echo "Creates a user"
echo "Please enter username:"
read username
4 ) echo “drop a user―
echo "Please enter user name"
read username
fi ;;
0 ) exit;;
* ) echo "Please enter 1,2,3,4 or 0"
esac
done