Menu with sub-menu options

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http://www.unix.com – Hi! I have created on script which is working fine with menu options and with a sub-menu. I want to enhance it by using sub-options under menu options. Like. Quote: 1) Take input from user and show list of files with that name. 1.1) Show the contents of file chosen by user from the list. option 1) will give the list only. option 1.1) should give the option to user to choose one file, whose content user wanna see. I can implement this as a separate option. But I want to implement this under option 1. Can this be happen? I tried using some bu (HowTos)