home | O'Reilly's CD bookshelfs | FreeBSD | Linux | Cisco | Cisco Exam    


select x [in list ]

Korn shell only. Display a list of menu items on standard error, numbered in the order they are specified in list . If no in list is given, items are taken 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 pressing the Return key. (User input is stored in the shell variable REPLY.) If a valid line number is typed, commands are executed. Typing EOF terminates the loop.


PS3="Select the item number: "
select event in Format Page View Exit
   case "$event" in
     Format) nroff $file | lp;;
     Page)   pr $file | lp;;
     View)   more $file;;
     Exit)   exit 0;;
     *   )   echo "Invalid selection";;

The output of this script looks like this:

1. Format
2. Page
3. View
4. Exit
Select the item number:

Previous: Reference: return UNIX in a Nutshell: System V Edition Next: Reference: set
Reference: return Book Index Reference: set

The UNIX CD Bookshelf NavigationThe UNIX CD BookshelfUNIX Power ToolsUNIX in a NutshellLearning the vi Editorsed & awkLearning the Korn ShellLearning the UNIX Operating System