变量$REPLY是'read'命令结果保存的默认变量

#!/bin/bash

select item in one two three four five

do

if [ ! -z "$item" ];then

echo "Your chose option number $REPLY while is \"$item\""

else

echo "$REPLY is not valid."

fi

done

[root@bogon script]# ./select1.sh

1) one

2) two

3) three

4) four

5) five

#? 1

Your chose option number 1 while is "one"

#? 3

Your chose option number 3 while is "three"

#? 4

Your chose option number 4 while is "four"

#? 7

7 is not valid.

#?

[root@bogon script]#