20.22 Alarm system monitoring items

Alarm system monitoring project

• Defining subscripts is the monitoring project

The first load.sh is necessary, because any machine has been defined in the main script to monitor the system load

[root@hf-01 mon]# cd shares/
[root@hf-01 shares]# pwd
/usr/local/sbin/mon/shares
[root@hf-01 shares]# vim load.sh

#! /bin/bash
##Writen by aming##
load=`uptime |awk -F 'average:' '{print $2}'|cut -d',' -f1|sed 's/ //g' |cut -d. -f1`
#计算系统负载
if [ $load -gt 10 ] && [ $send -eq "1" ]
then
    echo "$addr `date +%T` load is $load" >../log/load.tmp  
#这条命令的目的是为了发送日志
    /bin/bash ../mail/mail.sh [email protected] "$addr\_load:$load" `cat ../log/load.tmp`
fi
echo "`date +%T` load is $load"

502.sh content (502 definitely needs a log), 502 involves an access log, and the access log is designed to a time

• Because the script monitoring main script is executed once a minute, so 502 monitoring, you must see the time and information of the access log 1 minute ago

[root@hf-01 shares]# vim 502.sh

#! /bin/bash
d=`date -d "-1 min" +%H:%M`
c_502=`grep :$d:  $log  |grep ' 502 '|wc -l`
#截取一分钟以前的时间
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
#mail就是定义发送给谁，发送的主题，发送的内容
fi
echo "`date +%T` 502 $c_502"

disk.sh content (disk usage)

• disk, the idea is to look at the partitions one by one

[root@hf-01 shares]# vim disk.sh

#! /bin/bash
##Writen by aming##
rm -f ../log/disk.tmp
for r in `df -h |awk -F '[ %]+' '{print $5}'|grep -v Use`  
#[ %]+  以 多个，空格 或者 %   作为分隔符，+号表示一个或多个；因为系统默认是英文，所以grep -v Use 过滤掉的就是 已用
do
    if [ $r -gt 90 ] && [ $send -eq "1" ]
then
    echo "$addr `date +%T` disk useage is $r" >>../log/disk.tmp
fi
done

if [ -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 nook"
else
    echo "`date +%T` disk useage is ok"
fi

• awk specify multiple delimiters

[root@hf-01 shares]# echo "12:aa#123bb:22#ww" |awk -F '[:#]' '{print $3}'
123bb

[root@hf-01 shares]# echo "12:aa#123bb:22#ww" |awk -F '[:#]' '{print NF}'
5
[root@hf-01 shares]# echo "12:aa#123bb:22##ww" |awk -F '[:#]' '{print NF}'
6
[root@hf-01 shares]# echo "12:aa#123bb:22##ww" |awk -F '[:#]+' '{print NF}'
5
[root@hf-01 shares]#