linux系統CPU內存磁盤監控發送郵件腳本之二

#!/bin/bash

export PATH

export LANG=zh_CN.UTF-8

#

#

#top之后輸入數字1,可以查看每顆CPU的情況.

#

#

#先配置好mailx郵箱賬號密碼:

#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

#文件存放位置

#

#判斷是否安裝bc

ping -c 2 www.baidu.com || exit 5

[ `echo "1 > 2"|bc` ] || yum install bc -y

sleep 3

[ `rpm -qa|grep dos2unix` ] || yum install dos2unix -y

sleep 3

#

#

#時間

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

#服務器IP

readonly machine=$(ip add | grep inet|grep -v 'inet6\|127.0.0.1'|awk '{ print $2 }' | sed 's/\/.*$//')

readonly names=$(hostname)

#cpu個數

readonly cpuinfos=$(cat /proc/cpuinfo|grep processor|wc -l)

#在線用戶數

readonly onlines='2'

#cpu負載閾值

readonly cpuload='80'

#判斷用戶在線數

userd=$(top -n 1|grep users|awk -F '[, ]+' '{print $6}')

whos=$(who)

if [ $userd > $onlines ];then

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

fi

#

#

function top_check(){

#服務器運行多久  

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

#用戶空間占用CPU百分比

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

#內核空間占用CPU百分比

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

#改變過優先級的進程占用CPU的百分比

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

#空閑CPU百分比

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

#I/O等待占用CPU的百分比

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

#硬中斷占用CPU的百分比

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

#軟中斷占用CPU的百分比

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

#虛擬 CPU 等待實際 CPU 的時間的百分比

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

}

function load_time(){

#一分鐘負載

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

#五分鐘負載

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

#十五分鐘負載

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

}

function load_mem(){

#內存總容量

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

#當前空閑內存

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

#當前已使用內存

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

#內存buff/cache

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

#swap總容量

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

#swap當前空閑

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

#swap當前已使用

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

#swap內存avail Mem

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

}

function echo_run(){

echo "$times   $machine   運行多久: $runup 分鐘 "

}

function echo_cpu(){

   echo "$times   $machine   用戶空間占用CPU百分比: $cpuus "

   echo "$times   $machine    內核空間占用CPU百分比: $cpusy "

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

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

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

   echo "$times   $machine    硬中斷占用CPU的百分比: $cpuhi "

   echo "$times   $machine    軟中斷占用CPU的百分比: $cpusi "

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

}

function echo_mem(){

   echo "$times   $machine   內存總容量: $memtotal M "

   echo "$times   $machine   空閑內存: $memfree M "

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

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

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

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

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

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

}

function echo_load(){

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

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

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

}

#調用函數

top_check

load_time

load_mem

#

if [ `echo "$load1 > $cpuinfos"|bc` -eq 1 ];then

readonly runlog="/tmp/runs.log"

   echo_run >$runlog

   readonly loadlog="/tmp/load.log"

   echo_load >$loadlog

   readonly cpulog="/tmp/cpus.log"

   echo_cpu >$cpulog

   readonly memlog="/tmp/mems.log"

   echo_mem >$memlog

#發送郵件

dos2unix -k $runlog

dos2unix -k $loadlog

dos2unix -k $cpulog

dos2unix -k $memlog

mailx -s "服務器$names $machine" lumia98@vip.qq.com < $runlog

mailx -s "服務器$names $machine" lumia98@vip.qq.com < $loadlog

mailx -s "服務器$names $machine" lumia98@vip.qq.com < $cpulog

mailx -s "服務器$names $machine" lumia98@vip.qq.com < $memlog

fi

#判斷I/O wa是否過高

if [ `echo "$cpuwa > 60"|bc` -eq 1 ];then

readonly ioslogs="/tmp/wa.log"

iostat -cdx 3 > $ioslogs

dos2unix -k $ioslogs

  mailx -s "服務器$names $machine的負載wa%" lumia98@vip.qq.com < $ioslogs

fi

#判斷磁盤空間不足

disks=$(df | grep /dev|grep -v "shm\|boot\|devtmpfs"|awk '{print $5}'|sed 's/\%.*$//')

for x in $disks

do

if [ $x -gt 70 ]; then

disklog="/tmp/disk.log"

df -h >$disklog

dos2unix -k $disklog

mailx -s "服務器$names $machine" lumia98@vip.qq.com < $disklog

fi

done