student@ubuntu:/home/admin1$ bash script.sh
Enter A to display current day, date, time, and number of logged-in users.
Enter B to create a backup file.
Enter N to display the Nth line in the user-enterd file.
Enter U to search for a user. Display the name, number, and account status.
Type A, B,N, or U: A
Today is: Sunday
Date: 23/05/21
Time: 18:30:38
Number of logged-in users is: 1
student@ubuntu:/home/admin1$