shell检查网络出现异常、僵尸进程、内存过低后机器自动重启

最新推荐文章于 2025-04-19 00:06:32 发布

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本脚本持续监控TCP连接状态、内存使用情况及系统进程，当发现连接异常、内存不足或存在特定进程时，将自动重启系统以维持稳定运行。

#!/bin/bash
while :
do
   neterror=$(/bin/netstat -a | grep -cw "CLOSE_WAIT")
   echo "get tcp netstate 'LISTEN' number cuccessful!"
   echo "neterror"$neterror

   if [ $neterror -gt "10" ]; then
       echo "too much net error,system will reboot now!"
       sleep 2
       /sbin/reboot -f
   fi

        freememory=$(free -m | grep Mem | awk '{print $4}')
       echo "freesize:"$freememory

   if [ $freememory -lt "100" ]; then
       echo "the free memory size is less then 100M,system will reboot now!"
       sleep 2
       /sbin/reboot -f
   fi

   corpsprocess=$(ps -ef | awk '{print $3$4}' | grep -c "Z")
       echo "corpsprocess:"$corpsprocess
   if [ $corpsprocess -gt "0" ]; then
               echo "system had corps process,system will reboot now!"
               sleep 2
               /sbin/reboot -f
       fi

   sleep 2
done