一個監控系統性能的腳本

[root@localhost ~]# cat monitor.sh 

#!/bin/bash

# chkconfig: 2345 08 92

# description:  The scripts is to monitor system health !

Today=`date +%Y%m%d`

function disk {

           clear 

           df -h

}

function memory {

           clear

           free -m

function cpu {

           top

function process {

          clear

          process_nu=`lsof|wc -l`

          echo "The current process numbers is $process_nu" !

function ipaddress {

          ipaddr=`ifconfig eth0|awk '/inet addr/ {print $2}'|awk -F':' '{print $2}'`

          echo "This server ip address is $ipaddr" !

function disk_io {

         clear

         diskblockin=`vmstat |sed 1d|sed 1d|awk '{print $9}'`

         diskblockout=`vmstat |sed 1d|sed 1d|awk '{print $10}'`

         echo "The block equipment received $diskblockin blocks  one second !"

         echo "The block equipment send $diskblockout blocks one second !"

function current_time {

         current_time=`date|awk '{print $5}'`

         echo "The current time is $current_time o clock !"

function users {

          current_user=`who|wc -l`

          echo "There are $current_user users login in the system !"

function networkcardflow  {

receive1=`cat /proc/net/dev|grep eth0|awk '{print $2}'`

send1=`cat /proc/net/dev|grep eth0|awk   '{print $10}'`

sleep 5 

receive2=`cat /proc/net/dev|grep eth0|awk '{print $2}'`

send2=`cat /proc/net/dev|grep eth0|awk   '{print $10}'`

receive_cnt=`expr $receive2 - $receive1`

receive_cnt=`expr $receive_cnt / 40`

send_cnt=`expr $send2 - $send1`

send_cnt=`expr $send_cnt / 40`

echo "The networkcard flow Input is $receive_cnt bps per second !"

echo "The networkcard flow Ouput is $send_cnt bps per second |"

function menu {

         echo

         echo -e "\t\t\tSystem Admin Menu\n"

         echo -e "\t1. Display disk space"

         echo -e "\t2. Display memory usage"

         echo -e "\t3. Display cpu usage"

         echo -e "\t4. Display process statistics"

         echo -e "\t5. Display ip address"

         echo -e "\t6. Display disk io information"

         echo -e "\t7. Display current time"

         echo -e "\t8. Display current users"

         echo -e "\t9. Display networkcard flow"

         echo -e "\t0. Exit program\n\n"

         echo -en "\t\tEnter option: "

         read -n 1 option

while true

do

  menu

 case $option in 

       0)

          break ;;

       1)

          disk ;;

       2)

         memory ;;

       3)

         cpu ;;

       4)

         process ;;

       5)

         ipaddress ;;

       6)

         disk_io ;;

       7)

         current_time ;;

       8)

         users ;;

       9)

         networkcardflow ;;

       *)

         echo "Sorry , wrong selection !"

         esac

         echo -en "\n\n\t\t\tHit any key to continue"

         read -n 1 line

 done

clear

chmod +x  monitor.sh

執行顯示效果如下：

<a href="https://s5.51cto.com/wyfs02/M02/8F/51/wKiom1jbAc3DSTYzAAAwKQji9XE746.png-wh_500x0-wm_3-wmp_4-s_1417126213.png" target="_blank"></a>

可以輸入自己的選項，顯示相應的結果：

比如輸入 1

顯示如下：

<a href="https://s5.51cto.com/wyfs02/M02/8F/4F/wKioL1jbAkvyiKWwAAAi8YdxeFo781.png-wh_500x0-wm_3-wmp_4-s_2699119243.png" target="_blank"></a>

本文轉自伺服器運維部落格51CTO部落格，原文連結http://blog.51cto.com/shamereedwine/1911284如需轉載請自行聯系原作者

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