几例简单的case编程 shell

1、匹配模式引用| #!/bin/bash echo -n “Do you want to continue?[Yes or No]”: read ANS case $ANS in  Y|y|yes|Yes|YES)   echo “YES!”  ;;  N|n|no|No|NO)   exit 0  ;;  *)   echo “`basename $0`:The unexpected string”   exit 1  ;; esac echo $? 2、参数传入 #!/bin/bash if [ $# != 1 ];then  echo “Usage `basename $0`:[sta