kient88 发表于 2018-8-23 11:35:16

shell编程实战

  监控系统主脚本讲解
  cd /usr/local/sbin
  # mkdir mon
  mon是监控平台的总目录
  # cd mon/
  # mkdir bin conf mail shares log(创建子目录)
  bin:是主脚本 conf:配置文件 mail:用来发邮件的php脚本和mail.sh的脚本
  shares:里面是子shell脚本
  写bin下的主脚本:
  # cd bin/
  # vi main.sh
  #!/bin/bash
  #Written by aming.
  # 是否发送邮件的开关
  export send=1
  # 过滤ip地址
  export addr=`/sbin/ifconfig |grep -A1 'eth0' |grep addr: |awk '{print $2}'|awk -F: '{print $2}'`
  dir=`pwd`
  # 只需要最后一级目录名
  last_dir=`echo $dir|awk -F'/' '{print $NF}'`
  # 下面的判断目的是,保证执行脚本的时候,我们在bin目录里,不然监控脚本、邮件和日志很有可能找不到
  if [ $last_dir == "bin" ] || [ $last_dir == "bin/" ]; then
  conf_file="../conf/mon.conf"
  else
  echo "you shoud cd bin dir"
  exit
  fi
  exec 1>>../log/mon.log 2>>../log/err.log
  echo "`date +"%F %T"` load average"
  /bin/bash ../shares/load.sh
  #先检查配置文件中是否需要监控502
  if grep -q 'to_mon_502=1' $conf_file; then
  export log=`grep 'logfile=' $conf_file |awk -F '=' '{print $2}' |sed 's/ //g'`
  /bin/bash../shares/502.sh
  fi
  # cd conf
  # vi mon.conf
  ## to config the options if to monitor
  ## cdb主要定义mysql的服务器地址、端口以及user、password
  to_mon_cdb=0   ##0 or 1, default 0,0 not monitor, 1 monitor
  cdb_ip=10.20.3.13
  cdb_port=3315
  cdb_user=username
  cdb_pass=passwd
  ## httpd   如果是1则监控,为0不监控
  to_mon_httpd=0
  ## php 如果是1则监控,为0不监控
  to_mon_php_socket=0
  ## http_code_502需要定义访问日志的路径
  to_mon_502=1
  logfile=/data/log/xxx.xxx.com/access.log
  ## request_count   定义日志路径以及域名
  to_mon_request_count=0
  req_log=/data/log/www.discuz.net/access.log
  domainname=www.discuz.net
  监控子脚本load.sh/502.sh讲解
  # cd shares/
  # vi load.sh
  #! /bin/bash
  ##Writen by aming##
  load=`uptime |awk -F 'average:' '{print $2}'|cut -d',' -f1|sed 's/ //g' |cut -d. -f1`
  if [ $load -gt 20 ] && [ $send -eq "1" ]
  then
  echo "$addr `date +%T` load is $load" >../log/load.tmp
  /bin/bash ../mail/mail.sh $addr\_load $load ../log/load.tmp
  fi
  echo "`date +%T` load is $load"
  # vi 502.sh
  #! /bin/bash
  d=`date -d "-1 min" +%H:%M`
  c_502=`grep :$d:$log|grep ' 502 '|wc -l`
  if [ $c_502 -gt 10 ] && [ $send == 1 ]; then
  echo "$addr $d 502 count is $c_502">../log/502.tmp
  /bin/bash ../mail/mail.sh $addr\_502 $c_502../log/502.tmp
  fi
  echo "`date +%T` 502 $c_502"

页: [1]
查看完整版本: shell编程实战