Linux system CPU memory disk monitoring Send mail script two

#!/bin/bash

Export PATH

Export LANG=ZH_CN. UTF-8

#

#

#top之后输入数字1, you can view the status of each CPU.

#

#

#先配置好mailx邮箱账号密码:

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

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

#set [email protected]

#set smtp=smtp.163.com

#set [email protected]

#set smtp-auth-password=xxx

#set Smtp-auth=login

#EOF

#文件存放位置

#

#判断是否安装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

#

#

#时间

ReadOnly times=$ (Date +%y "/"%m "/"%d ""%k ":"%m ")

#服务器IP

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

ReadOnly names=$ (hostname)

#cpu个数

ReadOnly cpuinfos=$ (Cat/proc/cpuinfo|grep processor|wc-l)

#在线用户数

ReadOnly onlines= ' 2 '

#cpu负载阈值

ReadOnly cpuload= ' 80 '

#判断用户在线数

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

Whos=$ (WHO)

If [$userd > $onlines];then

echo "$times $machine current Online users: $whos"

Fi

#

#

function Top_check () {

#服务器运行多久

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

#用户空间占用CPU百分比

cpuus=$ (top-n 1|grep cpu|awk-f "," ' {print $} ' |awk-f ' "' {print $} ')

#内核空间占用CPU百分比

cpusy=$ (top-n 1|grep cpu|awk-f "," ' {print $} ' |awk-f ' "' {print $} ')

#改变过优先级的进程占用CPU的百分比

cpuni=$ (top-n 1|grep cpu|awk-f "," ' {print $} ' |awk-f ' "' {print $} ')

#空闲CPU百分比

cpuid=$ (top-n 1|grep cpu|awk-f "," ' {print $4} ' |awk-f ' "' {print $} ')

Percentage of CPU #I/O waiting to be consumed

cpuwa=$ (top-n 1|grep cpu|awk-f "," ' {print $} ' |awk-f ' "' {print $} ')

#硬中断占用CPU的百分比

cpuhi=$ (top-n 1|grep cpu|awk-f "," ' {print $6} ' |awk-f ' "' {print $} ')

#软中断占用CPU的百分比

cpusi=$ (top-n 1|grep cpu|awk-f "," ' {print $7} ' |awk-f ' "' {print $} ')

Percentage of time #虚拟 CPU waits for the actual CPU

cpust=$ (top-n 1|grep cpu|awk-f "," ' {print $8} ' |awk-f ' "' {print $} ')

}

function Load_time () {

#一分钟负载

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

#五分钟负载

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

#十五分钟负载

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

}

function Load_mem () {

#内存总容量

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

#当前空闲内存

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

#当前已使用内存

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

#内存buff/cache

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

#swap总容量

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

#swap当前空闲

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

#swap当前已使用

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

#swap内存avail Mem

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

}

function Echo_run () {

echo "How long $times $machine run: $runup minutes"

}

function Echo_cpu () {

echo "$times $machine User space consumption CPU percentage: $cpuus"

echo "$times $machine kernel space consumption CPU percentage: $cpusy"

echo "$times $machine a percentage of CPU-intensive processes that have changed priority: $cpuni"

echo "$times $machine Idle CPU percentage: $cpuid"

echo "$times percentage of CPU $machine I/O Waiting: $cpuwa"

echo "$times $machine percent of hard interrupts occupied by CPU: $cpuhi"

echo "$times $machine the percentage of CPU that the soft interrupt consumes: $cpusi"

echo "$times $machine The percentage of time the virtual CPU waits for the actual CPU: $cpust"

}

function Echo_mem () {

echo "$times $machine Total memory capacity: $memtotal M"

echo "$times $machine free Memory: $memfree M"

echo "$times $machine used Memory: $memused M"

echo "$times $machine memory Buff/cache: $membuff M"

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

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

echo "$times $machine swap used: $swapused M"

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

}

function Echo_load () {

echo "$times $machine 1 min CPU load: $load 1"

echo "$times $machine 5 min CPU Load: $load 5"

echo "$times $machine 15 min CPU Load: $load 15"

}

#调用函数

Top_check

Load_time

Load_mem

#

If [' Echo ' $load 1 > $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

#发送邮件

Dos2unix-k $runlog

Dos2unix-k $loadlog

Dos2unix-k $cpulog

Dos2unix-k $memlog

Mailx-s "Server $names $machine" [email protected] < $runlog

Mailx-s "Server $names $machine" [email protected] < $loadlog

Mailx-s "Server $names $machine" [email protected] < $cpulog

Mailx-s "Server $names $machine" [email protected] < $memlog

Fi

#判断I/o WA is too high

If [' echo ' $cpuwa > ' |BC '-eq 1];then

ReadOnly ioslogs= "/tmp/wa.log"

IOSTAT-CDX 3 > $ioslogs

Dos2unix-k $ioslogs

Mailx-s "Server $names $machine load wa%" [email protected] < $ioslogs

Fi

#判断磁盘空间不足

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

For x in $disks

Do

If [$x-gt 70]; Then

Disklog= "/tmp/disk.log"

Df-h > $disklog

Dos2unix-k $disklog

Mailx-s "Server $names $machine" [email protected] < $disklog

Fi

Done

This article is from "A Recruit Apprentice" blog, please be sure to keep this source http://sadoc.blog.51cto.com/12189157/1943283

Linux system CPU memory disk monitoring Send mail script two