select command in Linux is used to create a numbered menu from which a user can select an option. If the user enters a valid option then it executes the set of command written in select block and then ask again to enter a number, if a wrong option is entered it does nothing. If user enters nothing and simply press ‘enter‘ the option menu gets printed.
select NAME [in WORDS ... ;] do COMMANDS; done
- help select : It displays help information.