腳本監控當前服務器負載狀況

#!/bin/bash

#觸發閾值發郵件尚未寫.

export PATH

export LANG=zh_CN.UTF-8

#先配置好mailx郵箱帳號密碼:

#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   運行多久: $runup 分鐘"

 

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

   echo "$times   $machine   當前在線用戶數: $userd"

   

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

   echo "$times   $machine   1分鐘CPU負載: $load1"

   

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

   echo "$times   $machine   5分鐘CPU負載: $load5"

   

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

   echo "$times   $machine   15分鐘CPU負載: $load15"

   

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

   echo "$times   $machine   用戶空間佔用CPU百分比: $cpuus"

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

   echo "$times   $machine    內核空間佔用CPU百分比: $cpusy"

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

   echo "$times   $machine    改變過優先級的進程佔用CPU的百分比: $cpuni"

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

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

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

   echo "$times   $machine    I/O等待佔用CPU的百分比: $cpuwa"

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

   echo "$times   $machine    硬中斷佔用CPU的百分比: $cpuhi"

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

   echo "$times   $machine    軟中斷佔用CPU的百分比: $cpusi"

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

   echo "$times   $machine    虛擬 CPU 等待實際 CPU 的時間的百分比: $cpust"

   

   #內存部分M爲單位

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

   echo "$times   $machine   內存總共: $memtotal M"

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

   echo "$times   $machine   空閒內存: $memfree M"

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

   echo "$times   $machine   已使用內存: $memused M"

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

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

   #swap部分M

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

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

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

   echo "$times   $machine   swap空閒: $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內存avail Mem: $swapavail M"

   

}

files="/tmp/top.logs"

top_check >$files

dos2unix -k $files

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