Shell Script Basics (v)

First, the alarm system main script

[[email protected] ~]# cd/usr/local/sbin/# #脚本基本都放在这个文件夹下, convenient management [[email protected] sbin]# mkdir mon## Create a monitoring script home directory [[[email protected] sbin]# CD mon[[email protected] mon]# mkdir bin conf shares log mail# #创建监控子目录 [[ Email protected] mon]# CD bin[[email protected] bin]# vim main.sh# #创建入口shell脚本文件, the main script file is written to the following #!/bin/bash# Written by taoyuan# whether to send mail switch export send=1# filter IP address export addr= '/sbin/ifconfig |grep-a1 ' ens33: ' |awk '/inet/{print $} ' ' dir= ' pwd ' #只需要最后一级目录名last_dir = ' echo $dir |awk-f '/' {print $NF} ' #下面的判断目的是, when the script is executed, we are in the bin directory, otherwise the monitoring script, Mail and logs are most likely not found if [$last _dir = = "Bin"] | | [$last _dir = = "bin/"]; Then conf_file= ". /conf/mon.conf "Else echo" you shoud cd bin dir "Exitfiexec 1>> /log/mon.log 2>> /log/err.logecho "' Date +"%f%t "' Load average"/bin/bash: /shares/load.sh# first check whether the configuration file needs to monitor 502if grep-q ' to_mon_502=1 ' $conf _file; Then export log= ' grep ' logfile= ' $conf _file |awk-f ' = ' {print $} ' |sed ' s///g '/bin/bash. /shares/502.shfi

Second, alarm system configuration file

[[email protected] bin]# cd ../conf/[[email protected] conf]# vim mon.conf##to config the options if to monitor## 定义mysql的服务器地址、端口以及user、passwordto_mon_cdb=0 ##0 or 1,default 0,0 not monitor,1 monitordb_ip=10.20.30.40db_port=3315db_user=usernamedb_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=1logfile=/data/log/xxx.xxx.com/access.log## request_count 定义日志路径以及域名to_mon_request_count=0req_log=/data/log/www.discuz.net/access.logdomainname=www.discuz.net

Third, alarm system monitoring Project

[[email protected] conf]# CD. /shares/[[email protected] shares]# vim load.sh#!/bin/bash# #Writen by zlinux# #load = ' uptime |awk-f ' average: ' { Print $ ' |cut-d ', '-f1|sed ' s///g ' |cut-d.-f1 ' If [$load-gt] && [$send-eq ' 1 ']then echo ' $addr ' dat E+%t ' load is $load '; /log/load.tmp/bin/bash. /mail/mail.sh $addr \_load $load. /log/load.tmpfiecho "' Date +%t ' load is $load" [[[email protected] shares]# vim 502.sh#!  /bin/bashd= ' date-d "1 min" +%h:%m ' c_502= ' grep: $d: $log |grep ' 502 ' |wc-l ' if [$c _502-gt] && [$send = = 1 ]; Then echo, "$addr $d 502 count is $c _502" ... /log/502.tmp/bin/bash. /mail/mail.sh $addr \_502 $c _502. /log/502.tmpfiecho "' Date +%t ' 502 $c _502" [[email protected] shares]# vim disk.sh#!/bin/bash# #Writen by zlinu# #rm- F.. /log/disk.tmpfor R in ' df-h |awk-f ' [%]+ ' {print $} ' |grep-v use ' do if [$r-gt] && [$send-eq "1"]t Hen echo "$addr ' date +%t ' disk useage is $r" >> /Log/disk.tmpfiif [-F.. /log/disk.tmp]then df-h >> /log/disk.tmp/bin/bash. /mail/mail.sh $addr \_disk $r. /log/disk.tmp echo "' Date +%t ' disk useage is the Nook" else echo "' Date +%t ' disk useage in ok" fi

Shell Script Basics (v)