The second script of sending mail for CPU memory disk monitoring in linux system

#! / bin/bash

Export PATH

Export LANG=zh_CN.UTF-8

#

#

Enter the number 1 after # top to check the status of each CPU.

#

#

# configure the mailx email account password first:

# cat > / etc/mail.rc $onlines]; then

Echo "$times $machine current online users: $whos"

Fi

#

#

Function top_check () {

# how long does the server run?

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

# percentage of CPU occupied by user space

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

# percentage of CPU occupied by kernel space

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

# percentage of CPU occupied by processes that have changed priority

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

# percentage of idle CPU

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

# percentage of CPU occupied by IPUBO waiting

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

# percentage of CPU occupied by hard interrupts

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

# percentage of CPU occupied by soft interrupt

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

# percentage of time that the virtual CPU waits for the actual CPU

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

}

Function load_time () {

# one minute load

Load1=$ (top-n 1 | grep user | awk-F'[,] +'{print $11}')

# five-minute load

Load5=$ (top-n 1 | grep user | awk-F'[,] +'{print $12}')

# 15 minute load

Load15=$ (top-b-n 1 | grep user | awk'{print $NF}')

}

Function load_mem () {

# Total memory capacity

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

# current free memory

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

# memory currently used

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

# memory buff/cache

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

# Total capacity of swap

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

# swap is currently idle

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

# swap is currently in use

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

# swap memory avail Mem

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

}

Function echo_run () {

Echo "$times $machine how long to run: $runup minutes"

}

Function echo_cpu () {

Echo "$times $machine percentage of CPU occupied by user space: $cpuus"

Echo "$times $machine kernel space occupies CPU percentage: $cpusy"

Echo "$times $machine percentage of CPU occupied by processes that have changed priority: $cpuni"

Echo "$times $machine percentage of idle CPU: $cpuid"

Echo "$times $machine Ibank O percentage of CPU waiting: $cpuwa"

Echo "$times $machine percentage of CPU occupied by hard interrupts: $cpuhi"

Percentage of CPU occupied by echo "$times $machine soft interrupts: $cpusi"

Echo "$times $machine 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 has been used: $swapused M"

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

}

Function echo_load () {

Echo "$times $machine 1 minute CPU load: $load1"

Echo "$times $machine 5-minute CPU load: $load5"

Echo "$times $machine 15 minutes CPU load: $load15"

}

# call function

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

# send email

Dos2unix-k $runlog

Dos2unix-k $loadlog

Dos2unix-k $cpulog

Dos2unix-k $memlog

Mailx-s "server $names $machine" lumia98@vip.qq.com

< $runlog mailx -s "服务器$names $machine" lumia98@vip.qq.com < $loadlog mailx -s "服务器$names $machine" lumia98@vip.qq.com < $cpulog mailx -s "服务器$names $machine" lumia98@vip.qq.com < $memlog fi #判断I/O wa是否过高 if [ `echo "$cpuwa >

60 "| bc`-eq 1]; then

Readonly ioslogs= "/ tmp/wa.log"

Iostat-cdx 3 > $ioslogs

Dos2unix-k $ioslogs

Mailx-s "load wa% of server $names $machine" lumia98@vip.qq.com

< $ioslogs fi #判断磁盘空间不足 disks=$(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 "Server $names $machine" lumia98@vip.qq.com < $disklog

Fi

Done