|
then
iptables -I INPUT -s $ip -j DROP
echo "$line is dropped" >>/tmp/drop/list.log
fi
done
sleep 200
done
例3：编写一个猜数字的游戏:要猜的数字为1 到100 的随机整数，用户执行程序后根据提示输入一个数字，若输入的数字等于要猜的数字，提示成功，程序结束。若输入的数字不等于要猜的数字，提示大于或者小于要猜的数字，然后提示用户继续输入答案，直到用户猜出正确答案数字，程序终止
#!/bin/sh
AGE=`echo $[RANDOM%101]`
#echo $AGE
while true
do
read -p "please age,'q' or 'exit' to exit:" age
[ "$age" == "q" -o "$age" == "exit" ] && exit 0
#no1
[ -z "$age" ] && echo "please a number" && continue
#no2
expr $age + 0 &>/dev/null
ret=$?
[ $ret -ne 0 ] && echo "please input a integer" && continue
#no3
if [ $age -eq $AGE ]
then
echo "guess right.........."
exit 0
elif [ $age -lt $AGE ]
then
echo "cai xiao le"
else
echo "cai da le"
fi
done
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