脚本监控当前服务器负载情况-创新互联

#!/bin/bash

#触发阈值发邮件还没有写.

export PATH

export LANG=zh_CN.UTF-8

#先配置好mailx邮箱账号密码:

#cat>/etc/mail.rc<<"EOF"

#set sendcharsets=iso-8859-1,utf-8

#set from=xxx@163.com

#set smtp=smtp.163.com

#set smtp-auth-user=xx@163.com

#set smtp-auth-password=xxx

#set smtp-auth=login

#EOF

readonly times=$(date +%Y"/"%m"/"%d" "%k":"%M)

readonly machine="192.168.1.10"

function top_check(){

  runup=$(top -n 1|grep user|awk -F '[, ]+' '{print $5}')

  echo "$times  $machine  运行多久: $runup 分钟"

  userd=$(top -n 1|grep user|awk -F '[, ]+' '{print $7}')

  echo "$times  $machine  当前在线用户数: $userd"

  load1=$(top -n 1|grep user|awk -F '[, ]+' '{print $11}')

  echo "$times  $machine  1分钟CPU负载: $load1"

  load5=$(top -n 1|grep user|awk -F '[, ]+' '{print $12}')

  echo "$times  $machine  5分钟CPU负载: $load5"

  load15=$(top -b -n 1|grep user|awk '{print $NF}')

  echo "$times  $machine  15分钟CPU负载: $load15"

  cpuus=$(top -n 1|grep Cpu|awk -F "," '{print $1}'|awk -F " " '{print $2}')

  echo "$times  $machine  用户空间占用CPU百分比: $cpuus"

  cpusy=$(top -n 1|grep Cpu|awk -F "," '{print $2}'|awk -F " " '{print $2}')

  echo "$times  $machine   内核空间占用CPU百分比: $cpusy"

  cpuni=$(top -n 1|grep Cpu|awk -F "," '{print $3}'|awk -F " " '{print $2}')

  echo "$times  $machine   改变过优先级的进程占用CPU的百分比: $cpuni"

  cpuid=$(top -n 1|grep Cpu|awk -F "," '{print $4}'|awk -F " " '{print $2}')

  echo "$times  $machine   空闲CPU百分比: $cpuid"

  cpuwa=$(top -n 1|grep Cpu|awk -F "," '{print $5}'|awk -F " " '{print $2}')

  echo "$times  $machine   I/O等待占用CPU的百分比: $cpuwa"

  cpuhi=$(top -n 1|grep Cpu|awk -F "," '{print $6}'|awk -F " " '{print $2}')

  echo "$times  $machine   硬中断占用CPU的百分比: $cpuhi"

  cpusi=$(top -n 1|grep Cpu|awk -F "," '{print $7}'|awk -F " " '{print $2}')

  echo "$times  $machine   软中断占用CPU的百分比: $cpusi"

  cpust=$(top -n 1|grep Cpu|awk -F "," '{print $8}'|awk -F " " '{print $2}')

  echo "$times  $machine   虚拟 CPU 等待实际 CPU 的时间的百分比: $cpust"

  #内存部分M为单位

  memtotal=$(($(top -n 1|grep buff/cache|awk -F '[, ]+' '{print $4}') / 1024))

  echo "$times  $machine  内存总共: $memtotal M"

  memfree=$(($(top -n 1|grep buff/cache|awk -F '[, ]+' '{print $7}') / 1024))

  echo "$times  $machine  空闲内存: $memfree M"

  memused=$(($(top -n 1|grep buff/cache|awk -F '[, ]+' '{print $10}') / 1024))

  echo "$times  $machine  已使用内存: $memused M"

  membuff=$(($(top -n 1|grep buff/cache|awk -F '[, ]+' '{print $13}') / 1024))

  echo "$times  $machine  内存buff/cache: $membuff M"

  #swap部分M

  swaptotal=$(($(top -n 1|grep avail|awk -F '[, ]+' '{print $3}') / 1024))

  echo "$times  $machine  swap总共: $swaptotal M"

  swapfree=$(($(top -n 1|grep avail|awk -F '[, ]+' '{print $6}') / 1024))

  echo "$times  $machine  swap空闲: $swaptotal M"

  swapused=$(($(top -n 1|grep avail|awk -F '[, ]+' '{print $9}') / 1024))

  echo "$times  $machine  swap已使用: $swapused M"

  swapavail=$(($(top -n 1|grep avail|awk -F '[, ]+' '{print $11}') / 1024))

  echo "$times  $machine  swap内存avail Mem: $swapavail M"

}

files="/tmp/top.logs"

top_check >$files

dos2unix -k $files

mailx -s "$machine" xxx@vip.qq.com < $files

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