An example looping script

The file below is an example file which demonstrates some of the testing as talked above along with several looping and control statements.

#! /bin/bash	
# Use the bash shell to run the script
# This is an example file to take entries from the user
# entries Version 1.0 May 22, 2000
DONE=no
ENTRIES="hello bye ls 1"
while [ $DONE = no ]
do
   echo Valid entries are: $ENTRIES
   read ENTRY             # Read the variable ENTRY from the user
   case $ENTRY in
   1)
       pwd
       ;;
   hello)
       echo How are you?
       ;;
   bye)
       echo exiting...
       DONE=yes
       ;;
   ls)
       ls -al |more
       ;;
   *)
       echo $ENTRY is an unrecognized command.
       ;;
   esac
done