Korn shell only. Display a list of menu items on standard error, numbered in the
order they are specified in
list is given, items are read from the command line (via
"$@"). Following the menu is a prompt string (set by PS3).
At the PS3 prompt, users select a menu item by typing its
line number, or they redisplay the menu by typing RETURN. (User input is
stored in the environment variable REPLY.)
If a valid line number is typed,
commands are executed.
PS3="Select the item number:" select event in Format Page View Exit do case "$event" in Format) nroff $file | lp;; Page) pr $file | lp;; View) cat $file Exit) exit 0;; * ) echo "Invalid selection";; esac done
The output of this script would look like this:
1. Format 2. Page 3. View 4. Exit Select the item number: