该脚本分成三部分，一部分是获取信息的脚本：getInfo.sh 一个是main脚本：main.sh、一个是ssh连接主机脚本：sshing.sh

---

main.sh

#是否检查主机是否存活
host_check=`cat ./install.command | grep "ENABLE" | cut -d"=" -f2`
#从哪个主机开始发送命令

start_host=`cat ./install.command | grep "START" | cut -d"=" -f2` 
#结束的主机

end_host=`cat ./install.command | grep "END" | cut -d"=" -f2`
#其他主机root的密码

default_passwd=`cat ./install.command | grep "PASSWD" | cut -d"=" -f2`
#要执行的命令


command=`cat ./install.command | grep "COMMAND" | cut -d"=" -f2`

echo "the start host: $start_host"

echo "the end host: $end_host"

echo "check the host? $host_check"

#if check the host

if [ $host_check = yes ]

then

while [ $start_host -le $end_host ]

  do

      hostname="192.168.3.$start_host"

      ping -c 1 $hostname

      start_host=$[$start_host+1]

  done

. ./getinfo.sh

onlyip=()

#去重

for i in "${live_host[@]}"

 do

  if [ ${#onlyip[*]} -eq 0 ]

   then

     onlyip[ ${#onlyip[*]} ]=$i

   else

     index=1

     for op in "${onlyip[@]}"

      do

       if [ "$i" = "$op" ]

        then

         break

       fi

       if [ $index -eq ${#onlyip[*]} ]

          then

           onlyip[ ${#onlyip[*]} ]=$i

           break

       fi

       index=$[$index+1]

     done

   fi

done

echo "the live host: "

echo "${onlyip[@]}"

echo "start run!!!!"

for ip in "${onlyip[@]}"

do

     . ./sshing.sh

done

echo "end"

else

echo "start run!!!!"

while [ $start_host -le $end_host ]

 do

   ip="192.168.3.$start_host"

   . ./sshing.sh

   start_host=$[$start_host+1]

 done

echo "end"

fi

　　

---

sshing.sh

/usr/bin/expect <<EOF

            spawn ssh -o "StrictHostKeyChecking no" root@$ip

            expect "password:"

            send "$default_passwd\r"

            expect "#"

            send "$command\r"

            expect "#"

            send "exit\r"

            expect eof

        EOF

---

getinfo.sh

#将存活的主机ip存在数组中

live_host=(`sudo cat /var/log/kern | grep "Live-host" | grep "SRC=" | awk {'print $9'} | cut -d"=" -f2`)

　

这仨脚本放一个文件夹就行，有问题请留言！

Linux通过脚本实现多台主机统一部署的相关教程结束。