对linux 主机配置定时清理

对linux 主机配置定时清理

因为经常有一些脚本会执行超时，而脚本本身又没有配置超时的配置，所以就需要有个脚本来定时对超时的程序进行清理。

很简洁的小脚本，请查看

#!/bin/bash　　　  
#by wangcc
function write_log {
        if [ $# != 2 ]
        then
                echo "Usage: "$0" need: 1. log level; 2. message !!! "$0" exit!!!"
                exit 0
        fi

        now=`date +%Y-%m-%d-%H:%M:%S`
    echo "${now}:[$1]--->>>$2<<<"
}

function check_free {
        buff=`free -m | grep Mem | awk '{print $6}'`
        if [[ $buff -gt 1000 ]]
        then
                echo 1 > /proc/sys/vm/drop_caches
                sleep 2
                echo 2 > /proc/sys/vm/drop_caches
                write_log "INFO" "wanted clean free .......Cleaning up"
        fi

}

function kill_jincheng {
        ancient_pid=`ps -ef |grep -E 'ip_request|get_goubanjia_ip|get_check'|grep -v grep    | awk '{print $2}'|awk BEGIN{RS=EOF}'{gsub(/
/,"|");print}' `
        pid=`ps -eo pid,tty,user,comm,lstart,etime | grep -E ${ancient_pid} | awk -F'[ :]+' '{if ($13>50) print $2}'`
        for i in ${pid} ;
        do
            if [[ ${i} -gt 0 ]]
            then
                  kill -9 ${pid}
                  
             fi 
        done  

}

function main {
        check_free
        kill_jincheng
}

main

配置定时任务

*/5 * * * * sh /root/scripts/shell/monitor/monitor.sh

大功告成