linux bash shell中case语句的实例

#!/bin/bash
##
# Program:
# File operation
# 1.) Open file 2.) Display file 3.) Edit file 4.) Delete file
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PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH
echo "---------------------------------"
echo "List of item to operate file -"
echo "---------------------------------"
echo "1). Open a file -"
echo "2). Display a file -"
echo "3). Edit a file -"
echo "4). Delete a file -"
echo "---------------------------------"
read select
case $select in
1)
echo "do open file operation"

2)
echo "do display a file operation"

3)
echo "do edit a file operation"

4)
echo "do delete a file operation"

*)
echo "There is nothing to do!"
exit 1

esac