wget具體參數(shù)請參考 http://man.linuxde.net/wget

shell demo

# 目標(biāo)web地址
URL="http://www.baidu.com"

# 鏈接檢查并去掉詳細(xì)過程信息
RES=`wget --spider $URL -nv 2>&1`

# 對返回數(shù)據(jù)進(jìn)行過濾檢測
RES=`echo $RES | grep "404.html"`

if [[ $RES != "" ]]
then
  echo "404"
else
  echo "非404"
fi

exit 0