I need help writing this bash shell script: LINUX

Creating a Menu: Write a shell script that displays the following menu items. Make sure users can continue running the script until they want to exit. 1. Display a list of files and directories in their current directory 2. Display a long list of files and directories in their current directory 3. Display the last 10 lines of the log file messages (/var/log/messages) 4. Display the contents of this script 5. Display the contents of this script in reverse order 6. Exit the program