监控linux系统的简易脚本

• 我先把脚本粘贴在这吧，方便大家观看，其中也是借鉴了不少其他大神的东西，这个脚本主要是用来监控服务器、用户、日志，还得创建备份，等等等等。最近学的shell比较多，就用这个来练练手了，比较简单，大家凑合看吧。
  
  
  

• #! /bin/bash
   10 # unset any variable which system may be using
   11 
   12 # clear the screen
   13 clear
   14 
   15 unset tecreset os architecture kernelrelease internalip externalip nameserver loadaverage
   16 
   17 while getopts iv name
   18 do
   19         case $name in
   20           i)iopt=1;;
   21           v)vopt=1;;
   22           *)echo "Invalid arg";;
   23         esac
   24 done
   25 
   26 if [[ ! -z $iopt ]]
   27 then
   28 {
   29 wd=$(pwd)
   30 basename "$(test -L "$0" && readlink "$0" || echo "$0")" > /tmp/scriptname
   31 scriptname=$(echo -e -n $wd/ && cat /tmp/scriptname)
   32 su -c "cp $scriptname /usr/bin/monitor" root && echo "Congratulations! Script Installed, now run monitor Command" || echo "Installation failed"
   33 }
   34 fi
   35 
   36 if [[ ! -z $vopt ]]
   37 then
   38 {
   39 echo -e "tecmint_monitor version 0.1
  Designed by Tecmint.com
  Released Under Apache 2.0 License"
   40 }
   41 fi
   42 
   43 if [[ $# -eq 0 ]]
   44 then
   45 {
   46 
   47 
   48 # Define Variable tecreset
   49 tecreset=$(tput sgr0)
   50 
   51 # Check if connected to Internet or not
   52 ping -c 1 google.com &> /dev/null && echo -e 'E[32m'"Internet: $tecreset Connected" || echo -e 'E[32m'"Internet: $tecreset Disconnected"
   53 
   54 # Check OS Type
   55 os=$(uname -o)
   56 echo -e 'E[32m'"Operating System Type :" $tecreset $os
   57 
   58 # Check OS Release Version and Name
   59 cat /etc/os-release | grep 'NAME|VERSION' | grep -v 'VERSION_ID' | grep -v 'PRETTY_NAME' > /tmp/osrelease
   60 echo -n -e 'E[32m'"OS Name :" $tecreset  && cat /tmp/osrelease | grep -v "VERSION" | cut -f2 -d"
   61 echo -n -e 'E[32m'"OS Version :" $tecreset && cat /tmp/osrelease | grep -v "NAME" | cut -f2 -d"
   62 
   63 # Check Architecture
   64 architecture=$(uname -m)
   65 echo -e 'E[32m'"Architecture :" $tecreset $architecture
   66 
   67 # Check Kernel Release
   68 kernelrelease=$(uname -r)
   69 echo -e 'E[32m'"Kernel Release :" $tecreset $kernelrelease
   70 
   71 # Check hostname
   72 echo -e 'E[32m'"Hostname :" $tecreset $HOSTNAME
   73 
   74 # Check Internal IP
   75 internalip=$(hostname -I)
   76 echo -e 'E[32m'"Internal IP :" $tecreset $internalip
   77 
   78 # Check External IP
   79 externalip=$(curl -s ipecho.net/plain;echo)
   80 echo -e 'E[32m'"External IP : $tecreset "$externalip
   81 
   82 # Check DNS
   83 nameservers=$(cat /etc/resolv.conf | sed '1 d' | awk '{print $2}')
   84 echo -e 'E[32m'"Name Servers :" $tecreset $nameservers 
   85 
   86 # Check Logged In Users
   87 who>/tmp/who
   88 echo -e 'E[32m'"Logged In users :" $tecreset && cat /tmp/who
   89 
   90 # Check RAM and SWAP Usages
   91 free -h | grep -v + > /tmp/ramcache
   92 echo -e 'E[32m'"Ram Usages :" $tecreset
   93 cat /tmp/ramcache | grep -v "Swap"
   94 echo -e 'E[32m'"Swap Usages :" $tecreset
   95 cat /tmp/ramcache | grep -v "Mem"
   96 
   97 # Check Disk Usages
   98 df -h| grep 'Filesystem|/dev/sda*' > /tmp/diskusage
   99 echo -e 'E[32m'"Disk Usages :" $tecreset 
  100 cat /tmp/diskusage
  101 
  102 # Check Load Average
  103 loadaverage=$(top -n 1 -b | grep "load average:" | awk '{print $10 $11 $12}')
  104 echo -e 'E[32m'"Load Average :" $tecreset $loadaverage
  105 
  106 # Check System Uptime
  107 tecuptime=$(uptime | awk '{print $3,$4}' | cut -f1 -d,)
  108 echo -e 'E[32m'"System Uptime Days/(HH:MM) :" $tecreset $tecuptime
  109 
  110 # Unset Variables
  111 unset tecreset os architecture kernelrelease internalip externalip nameserver loadaverage
  112 
  113 # Remove Temporary Files
  114 rm /tmp/osrelease /tmp/who /tmp/ramcache /tmp/diskusage
  115 }
  116 fi
  117 shift $(($OPTIND -1))

• 这个脚本可以安装也可以直接运行，看你自己的喜好了。无毒无害，你可以试一试，哈哈哈。
  • 　　安装命令：./tecmint_monitor.sh -i
  • 　　执行脚本命令：./tecmint_monitor.sh
  • 　　之后你就可以在任意的一个地方去执行monitor命令，就是这么简单：
  • 　　你运行命令就会获得下面这些各种各样和系统相关的信息：
    • 互联网连通性
    • 操作系统类型
    • 操作系统名称
    • 操作系统版本
    • 架构
    • 内核版本
    • 主机名
    • 内部IP
    • 外部IP
    • 域名服务器
    • 已登录用户
    • 内存使用率
    • 交换分区使用率
    • 磁盘使用率
    • 平均负载
    • 系统开机时间
      
      
  • 这个是运行效果图：
  • 
    
    
• 　　这个脚本其实还是比较好用的，日常的一些监控系统的活都让它干了，这样我自己就比较轻松了。