shell脚本之猜数字教程

shell脚本之猜数字

[root@m01 scripts]# cat guess-number.sh
#!/bin/bash
num=`echo $[RANDOM%60]`


while :
do


read -p "input a number in 1-60:" num1;


if
    [[ $num1 -eq $num  ]]
then
    echo You are right!
    exit 0
elif
    [[ $num1 -lt $num ]]
then
    echo You input number is low!
elif
    [[ $num1 -gt $num ]]
then
    echo You input number is big!
fi
done

检查脚本

[root@m01 scripts]# sh guess-number.sh
input a number in 1-60:20
You input number is low!
input a number in 1-60:50
You input number is big!
input a number in 1-60:40
You input number is big!
input a number in 1-60:30
You input number is big!
input a number in 1-60:25
You input number is big!
input a number in 1-60:24
You are right!

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