工作中编写的一些小脚本

#批量处理域名访问时间
while read line
do
ping -c 3 $line|tail -1  |awk -F "/" ‘{print $5}‘>> result/"$line"_result.txt&
done < wenzhou_domain.txt
sleep 1m

while read domain
do
a=`cat result/"$domain"_result.txt`
if [ "$a" = "" ];then
echo unknow >>result.txt
else
echo $a    >>result.txt
fi
done <wenzhou_domain.txt
#批量处理域名状态码
#!/bin/bash
Thread=100
CurFileName="domain.txt"
FifoFile="$.fifo"
mkfifo $FifoFile
exec 6<>$FifoFile
rm $FifoFile
for ((i=0;i<=$Thread;i++));do echo;done >&6
exec 5<$CurFileName
trap ‘kill -9 0;exit 1‘ 1 2 3 15

while read -u5 line
do
        read -u6
        {
                STATUS_CODE=$(curl -I -o /dev/null -s -w %{http_code} "$line")
                echo -e "$STATUS_CODE" |tee -a code.txt
                echo >&6
        } &
done
wait
#批量dig取ip
#!/bin/bash
Thread=100
CurFileName="domain.txt"
FifoFile="$.fifo"
mkfifo $FifoFile
exec 6<>$FifoFile
rm $FifoFile
for ((i=0;i<=$Thread;i++));do echo;done >&6
exec 5<$CurFileName
trap ‘kill -9 0;exit 1‘ 1 2 3 15

while read -u5 line
do
        read -u6
        {
                STATUS_CODE=$(dig "$line" A +noall +answer |tail -1|awk ‘{print $5}‘ )
                echo -e "$line:\t$STATUS_CODE" |tee -a code.txt
                echo >&6
        } &
done
wait
#批量查询端口
1）
#!/bin/bash
Thread=100
CurFileName="domain.txt"
FifoFile="$.fifo"
mkfifo $FifoFile
exec 6<>$FifoFile
rm $FifoFile
for ((i=0;i<=$Thread;i++));do echo;done >&6
exec 5<$CurFileName
trap ‘kill -9 0;exit 1‘ 1 2 3 15

while read -u5 line
do
        read -u6
        {
                STATUS_CODE=$(nmap -p80,443 "$line" | grep open  )
                echo -e  "$line\n$STATUS_CODE"|cut -d "/" -f1 |tee -a code.txt
                echo >&6
        } &
done
wait
2）
while read domain
do
nmap -sT $domain | grep open >> result/"$domain"_result.txt &
done < domain.txt
sleep 5m
while read Domain
do
        echo =========$Domain============ >>result.txt
        cat result/"$Domain"_result.txt >>result.txt
done < domain.txt
#监控web服务状态
#!/bin/sh
CheckUrl(){
timeout=5
fails=0
success=0
while true
do
	wget --timeout=$timeout --tries=1 http://blog.chinaunix.net/uid-23929712-id-2650421.html -q -O /dev/null
	if [ $? -ne 0 ]
		then
		let fails=fails+1
		else
		let success=success+1
	fi	
	if [ $success -ge 1 ]
		then
		echo success
		Critical="sys is up."
		echo $Critical|tee|mail -s "$Critical" hejianlai@dnion.com
		exit 0
	fi
	if [ $fails -ge 2 ]
		then
		Critical="sys is down."
		echo $Critical|tee|mail -s "$Critical" hejianlai@dnion.com
		exit 2
	fi
	done
	
}
CheckUrl
#判断系统内存大小
#/bin/sh
FreeMem=`free -m|awk ‘NR==3 {print $NF}‘`
CHARS="Current memory is $FreeMem"
if [ $FreeMem -lt 100 ]
then
	echo $CHARS|tee /tmp/messages.txt
		mail -s "`date +%F-%T`$CHARS" hejianlai@dnion </tmp/messages.txt
fi
#DDos攻击
#!/bin/sh
file=$1
while true
do
        awk ‘{print $1}‘ $1|grep -v "^$"|sort|uniq -c >/tmp/tmp.log
        exec </tmp/tmp.log
        while read line
        do
        ip=`echo $line|awk ‘{print $2}‘`
        count=`echo $line|awk ‘{print $1}‘`
        if [ $count -gt 500 ] && [ `iptables -L -n|grep "$ip"|wc -l` -lt 1 ]
        then
        iptables -I INPUT -s $ip -j DROP
        echo "$line is dropped" >>/tmp/droplist_$(date +%F).log
        fi
        done
sleep 1m
done
#去重输出到原文件
#! /bin/bash
while read gsa
do
{
while read yijiazai
do
if [ $gsa = $yijiazai ]; then
echo $gsa >>chongfu_domain.txt
sed -i "/$gsa/d" vaas.txt
#sed -i "/$gsa/d" yijiazai_domain.txt
fi
done < bukejia_domain.txt
}
done < vaas.txt
#去重输出到新文件
#! /bin/bash
while read https_d
do
{
while read diyipi_d
do
if [ $https_d = $diyipi_d ]; then
echo $https_d >>quchong_and_newfile.txt
sed -i "/$https_d/d" diyipi_domain.txt
fi
done < diyipi_domain.txt
}
done < https.txt
#过滤相同
#! /bin/bash
while read zuihouyipi
do
{
while read wangsu666_d
do
if [ $wangsu666_d = $zuihouyipi ]; then
echo $wangsu666_d >> qieheidomain.txt
fi
done < wangsu666domain.txt
}
done < 161domain.txt
#批量取出对应域名url
#!/bin/sh
while read line
do
        cat access.log*|awk ‘{print $5,$8}‘|grep 200|awk ‘{print $2}‘|grep $line|sort -R|head -2 >>rulse.txt 

done < domain.txt 
判断mysql服务是否开启的方法：
#!/bin/sh
echo method1-------------------
if [ `netstat -lnt|grep 3306|awk -F "[ :]+" ‘{print $5}‘` -eq 3306 ]
then
    echo "MySQL is Running."
else
    echo "MySQL is Stopped."
    /etc/init.d/mysqld start
fi
echo method2-------------------
if [ "`netstat -lnt|grep 3306|awk -F "[ :]+" ‘{print $5}‘`" = "3306" ]
then
    echo "MySQL is Running."
else
    echo "MySQL is Stopped."
    /etc/init.d/mysqld start
fi
 
echo method3-------------------
if [ `netstat -lntup|grep mysqld|wc -l` -gt 0 ]
then
    echo "MySQL is Running."
else
    echo "MySQL is Stopped."
    /etc/init.d/mysqld start
fi
echo method4-------------------
if [ `lsof -i tcp:3306|wc -l` -gt 0 ]
then
    echo "MySQL is Running."
else
    echo "MySQL is Stopped."
    /etc/init.d/mysqld start
fi
echo method5-------------------
[ `rpm -qa nmap|wc -l` -lt 1 ] && yum install nmap -y &>/dev/null
if [ `nmap 127.0.0.1 -p 3306 2>/dev/null|grep open|wc -l` -gt 0 ]
  then
    echo "MySQL is Running."
else
    echo "MySQL is Stopped."
    /etc/init.d/mysqld start
fi
echo method6-------------------
[ `rpm -qa nc|wc -l` -lt 1 ] && yum install nc -y &>/dev/null
if [ `nc -w 2  127.0.0.1 3306 &>/dev/null&&echo ok|grep ok|wc -l` -gt 0 ]
  then
    echo "MySQL is Running."
else
    echo "MySQL is Stopped."
    /etc/init.d/mysqld start
fi
echo method7-------------------
if [ `ps -ef|grep -v grep|grep mysql|wc -l` -ge 1 ]
  then
    echo "MySQL is Running."
else
    echo "MySQL is Stopped."
    /etc/init.d/mysqld start
fi
判断http服务是否开启的方法：
#!/bin/sh
echo http method1-------------------
if [ `netstat -lnt|grep 80|awk -F "[ :]+" ‘{print $5}‘` -eq 80 ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
echo http method2-------------------
if [ "`netstat -lnt|grep 80|awk -F "[ :]+" ‘{print $5}‘`" = "80" ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
 
 
 
echo http method3-------------------
if [ `netstat -lntup|grep nginx|wc -l` -gt 0 ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
echo http method4-------------------
if [ `lsof -i tcp:80|wc -l` -gt 0 ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
echo http method5-------------------
[ `rpm -qa nmap|wc -l` -lt 1 ] && yum install nmap -y &>/dev/null
if [ `nmap 127.0.0.1 -p 80 2>/dev/null|grep open|wc -l` -gt 0 ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
echo http method6-------------------
[ `rpm -qa nc|wc -l` -lt 1 ] && yum install nc -y &>/dev/null
if [ `nc -w 2  127.0.0.1 80 &>/dev/null&&echo ok|grep ok|wc -l` -gt 0 ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
echo http method7-------------------
if [ `ps -ef|grep -v grep|grep nginx|wc -l` -ge 1 ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
 
echo http method8-------------------
if [[ `curl -I -s -o /dev/null -w "%{http_code}\n" http://127.0.0.1` =~ [23]0[012] ]]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
 
 
echo http method9-------------------
if [ `curl -I http://127.0.0.1 2>/dev/null|head -1|egrep "200|302|301"|wc -l` -eq 1  ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
echo http method10-------------------
if [ "`curl -s http://127.0.0.1`" = "oldboy"  ]
  then
    echo "Nginx is Running."
else
    echo "Nginx is Stopped."
    /etc/init.d/nginx start
fi
 
ssh服务开启，关闭脚本
#!/bin/sh
path=/etc/init.d/sshd
if [ $# -ne 1 ]
        then
        echo $"usage:$0{start|stop|resatrt}"
        exit 1
fi
if [ "$1" = "start" ]
        then
        $path start
        if [ `netstat -lntup|grep sshd|wc -l` -ge 1 ]
        then
        echo "sshd is started"
        exit 0
        fi
elif [ "$1" = "stop" ]
        then
        $path  stop
        if [ `netstat -lntup|grep sshd|wc -l` -eq 0 ]
        then
        echo "sshd is stop"
        exit 0
        fi
elif [ "$1" = "restart" ]
        then
        $path  stop
        sleep 2
        $path  start 
         if [ `netstat -lntup|grep sshd|wc -l` -ge 1 ]
        then
        echo "sshd is restarted"
        else
        echo echo $"usage:$0{start|stop|resatrt}"
        exit 1
         fi
fi
安装lamp，lnmp脚本
#!/bin/sh
path=/root/scripts
[ ! -d "$path" ]&& mkdir $path
cat <<EOF
        1.[install lamp]
        2.[install lnmp]
        3.[exit]
        pls input the num you want:
EOF
read num
[ $num -eq 1 ]&&{
        echo "start installing lamp."
        sleep 2
        [ -x "$path/lamp.sh" ]||{
        echo "$path/lamp.sh does not exist or can be exec"
        exit 1
}
        $path/lamp.sh
        exit $?
}
[ $num -eq 2 ]&&{
        echo "start installing lnmp."
        sleep 2
        [ -x "$path/lnmp.sh" ]||{
        echo "$path/lnmp.sh does not exist or can be exec"
        exit 1
}             
        $path/lnmp.sh
        exit $?
}
[ $num -eq 3 ]&&{
        echo bye
        exit 3
}
[ ! $num -eq 1 -o ! $num -eq 2 -o ! $num -eq 3 ]&&{
        echo "the num you input must be{1|2|3}"
        echo "Input ERROR"
        exit 4
}

跳板机自动输入密码查看
#!/bin/expect
spawn ssh root@192.168.160.133 uptime
expect "*password"
send "123\n"
expect eof

批量生成随机字符文件名
#!/bin/sh
Path=/oldboy
[ -d "$Path" ]||mkir -p $Path
for n in `seq 10`
do
        random=`openssl rand -base64 40|sed ‘s#[^a-z]##g‘|cut -c 2-8`
        touch $Path/${random}_oldboy.html
done

防止恶意破解root账户的脚本
#!/bin/sh
cat /var/log/secure | awk ‘/Failed/{print $(NF-3)}‘ |sort|uniq -c|awk
‘{print $2"="$1}‘ >>/root/black.txt
DENY=50
for i in $(cat /root/black.txt)
do
        IP=$($i| awk -F‘=‘ ‘{print $1}‘)
        NUM=$($i| awk -F‘=‘ ‘{print $2}‘)
        if [ $NUM -gt $DENY ];then
        grep $IP /etc/hosts.deny > /dev/null
        if [ $? -gt 0 ];then
        echo "ssh:$IP" >> /etc/hosts.deny
        fi
        fi
done