多行输出

#!/bin/bash

while :
do
tput clear
cat << OUTPUT
********************************************
* 1> Next step;                            *
* 2> Get back;                             *
* 3> Exit;                                 *
* 4> Completed;                            *
* 5> Reset.                                *
********************************************
OUTPUT

echo -e -n "Please input the step<1,2,3,4,5>\n\t"
read value

case $value in
1)echo execute the next step;
read value
continue
;;
2)echo forward;
read value
continue
;;
3)exit 0
;;
4)echo The installation is completed!
read value
continue
;;
5)echo restoration completed!
read value
continue
;;
esac
read value
done