文章标题

linux的常用监控命令

查看linux的中cup使用率前10的进程
ps aux|head -1;ps aux|grep -v PID|sort -rn -k +3|head

打印CPU日志信息
创建checkcpu.sh

#!/usr/bin/env bashlogFile=/var/log/Bigdata/checkCpuUsage.logdelayTime=30  # seconds between each excute, default value is 30 secondswhile( true )do    echo `date` >> $logFile    echo "USER        PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND " >> $logFile    ps aux|head -1;ps aux|grep -v PID|sort -rn -k +3|head >> $logFile    sleep $delayTime    echo " " >> $logFiledone

在节点在后台执行如下shell文件：

    chmd 700 /opt/checkcpu.sh    nohup /opt/checkcpu.sh > /dev/null 2>/dev/null &