shell脚本ip校验

shell脚本ip校验

IP=$1
VALID_CHECK=$(echo $IP|awk -F. '$1<=255&&$2<=255&&$3<=255&&$4<=255{print "yes"}')
echo $VALID_CHECK

if echo $IP|grep -E "^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$">/dev/null; then
        if [ $VALID_CHECK == "yes" ];then
                echo "$IP available."
        else
                echo "$IP not available!"
        fi

else
        echo "Format error!"
fi