脚本测试网站是否存活

创建一个文件夹将所有网站信息存进去  curl.txt  : www.baidu.com www.hao123.com www.dahfhnjks.com

#!/bin/bash
check(){
        code=`curl -I -m 10 -o /dev/null -s -w %{http_code} http://${url}`
        if [ $code -eq 200 ]; then
                echo "ok"       
        else
                echo "no"
        fi
}
:<<EOF
for url in `cat url.txt`
do
        check
done
EOF
while read url
do
        check
done < url.txt