Shell scripts monitor system load using the uptime command

#!/bin/bash#author:yanconggod#date:2017-01-19#version:1.0#  using  uptime  command to monitor system load postfix_path= "/usr /sbin/postfix "mailx_path="/usr/bin/mailx "email=" [email protected] "#  get native IP address ip= ' IFCONFIG ENP2S0 |grep  ' \binet\b ' |awk  ' {print $2} ' #  formatted time display date= ' date  ' +%y-%m-%d %h:%m ' #  Declare integer variable declare -i cpu_num loads ave#  get current host  CPU  core number cpu_num= ' Grep -c   ' model name '  /proc/cpuinfo ' #  get current system within 15 minutes  CPU  average load rate value (take single digit) loads= ' Uptime|awk   ' {print $10} ' |awk -f '. '   ' {print $1} ' #  calculates the average load rate for a single core within 15 minutes (( ave = Loads / CPU_NUM )) #  Take the single digit of the above calculation average= ' echo  $ave |awk -f  '. '   ' {print $1} ' #if  [ ! -f  $POSTFIX _path  -o ! -f  $MAILX _ PATH " ];thenyum install -y postfix mailx    systemctl start  postfix && systemctl enable postfixfi#  when single core 15-minute load rate value is higher than  1  send alert mail if [  $average  -gt 1  ];then  echo -e  "Alarm:  system load too high!!! \ n time:  $DATE \ n server ip:  $IP \ n Current load rate:  $Loads "    | mail -s " system load too high "  $Emailfi

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Shell scripts monitor system load using the uptime command