caseans

一些shell程序

#!/bin/bash
#caseans
echo -e  "Do you wish to proceed [y..n]:\c"
read ANS
 case $ANS in 
 y|Y|yes|Yes) echo "yes is selected"
 ;;
 n|N|no|No) echo "no is selected"
 exit 0
 ;;
 *) echo "`basename $0`:Unknown respons" >&2
 exit 1
 ;;
esac