shell脚本监控系统中占用CPU，内存最大的进程

#!/bin/bash

#Monitor System Cpu and Memory Status

#Modify:20180817

#Log File

#Get top 10 Cpu Usage

[ -f /tmp/mon_cpu_mem_usage.log ] || touch /tmp/mon_cpu_mem_usage.log

log=/tmp/mon_cpu_mem_usage.log

process=`ps aux|head -1;ps aux|grep -v PID|sort -rn -k +3|head|sed -n '1p'|awk '{print $11}'`

process_name=$(echo $process| awk '{print $NF}')

cpu_stat=`ps aux|head -1;ps aux|grep -v PID|sort -rn -k +3|head|sed -n '1p'|awk '{print $3}'`

cpu_load=$(echo $cpu_stat| awk '{print $NF}')

mem_stat=`ps aux|head -1;ps aux|grep -v PID|sort -rn -k +3|head|sed -n '1p'|awk '{print $4}'`

mem_load=$(echo $mem_stat| awk '{print $NF}')

if [ `expr $cpu_load \> 90.0` -eq  1 ];then

echo "`date` Cpu Load Error,Please Contact Administrator  [Process Name]:$process_name [Max Load Value is]:$cpu_load"|tee -a  $log

else

echo "`date` Cpu Load OK, [Process Name]:$process_name [Max Load Value is]:$cpu_load "|tee -a $log

fi

if [ `expr $mem_load \> 90.0` -eq  1 ];then

echo "`date` Memory Load Error, [Process Name]:$process_name [Max Load Value is]:$mem_load Please Contact Administrator"|tee -a $log

else

echo "`date` Memory Load OK, [Process Name]:$process_name [Max Load Value is]:$mem_load"|tee -a  $log

fi

echo "Log file:$log"