监控服务器cpu，mem，disk自动邮件报警，并将数据写入表中。

加入crontab 中，5分钟执行一次

*/5  *  * * * /home/ymx/moniter.sh >> /home/ymx/moniter.log 2>&1

脚本如下

#!/bin/bash

##################
. /etc/profile
. ~/.bash_profile
##################
#for i in `/bin/ps -ef | grep moniter.sh |  grep -v grep | awk '{print $2}'`;do


#       /bin/kill -9 $i


#done
hostname kjw`/sbin/ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}' | tail -1 | cut -d. -f4`


#sleep 3


#while [ 0 ];do
maxcpu=80
maxmem=80
maxdisk=80
notice_mail="[email protected]  [email protected]"



function insert_log()
{


        mysql -h*.*.*.*  -u*  -p*  dbname << EOF 
insert into moniter(insert_time,server_ip,cpu_used,cpu_model,cpu_num,mem_size,mem_used,disk_default_size,disk_default_used,disk_home_size,disk_home_used) values("$insert_time","$server_ip","$cpu_used","$cpu_model","$cpu_num","$mem_size","$mem_used","$disk_default_size","$disk_default_used","$disk_home_size","$disk_home_used");
EOF


}


insert_time=`date +%Y%m%d-%H%M%S-%N`
server_ip="`/sbin/ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}' | tail -1`"
cpu_used=`vmstat  5 1 | awk 'NR>2  {print 100-$15}'`
if [ ${cpu_used} -gt ${maxcpu} ];then


        echo "warning!!! `date +%Y%m%d-%H%M%S` $server_ip cpu used $cpu_used% over 80% " | mail -s "`date +%Y%m%d-%H%M%S` $server_ip  cpu uesd over 80%" $notice_mail
fi


cpu_model=`cat /proc/cpuinfo | grep "model name" |awk '{print $NF}'|sed -n '1p'`
cpu_num=`cat /proc/cpuinfo | grep "model name" |wc -l`

mem_size=`free -m | sed -n '2p' | awk '{printf "%.02f\n",$2/1024}'`

mem_used=`free -m |awk 'NR>2&&NR<=3 {printf "%.0lf",$3/($3+$4)*100}'`
if [ ${mem_used} -gt ${maxmem} ];then


        echo "warning!!! `date +%Y%m%d-%H%M%S` $server_ip mem used $mem_used% over 80% " | mail -s "`date +%Y%m%d-%H%M%S` $server_ip  mem uesd over 80%" $notice_mail
fi




#disk_default_size=`df -h | awk 'NR>1&&/%/ && $6!="/dev/shm" && $6!="/boot" {print $1}' |sed -n 1p`
disk_default_size=`df -h | awk '"/"==$NF{print $(NF-4) }'`
disk_default_used=`df -h | awk '"/"==$NF{print $(NF-1) }'`
disk_home_size=`df -h | awk 'NR>1&&/%/ && $6!="/dev/shm" && $6!="/boot"  {print $1,$(NF-1),$NF}' | grep "/home" | awk '{print $1}'`
disk_home_used=`df -h | awk 'NR>1&&/%/ && $6!="/dev/shm" && $6!="/boot"  {print $1,$(NF-1),$NF}' | grep "/home" | awk '{print $(NF-1)}'`
insert_log;


diskusedp=`df -h | grep % | awk 'NR!=1 {print $(NF-1)}'`


echo "$diskusedp"


for p in ${diskusedp}; do


        pn=`echo "$p" | sed 's/\%//g'`
#       echo $pn
        if [ ${pn} -gt ${maxdisk} ];then


                echo "warning!!! `date +%Y%m%d-%H%M%S` $server_ip `df -h | grep -w "$p"` over 80% "
                echo "warning!!! `date +%Y%m%d-%H%M%S` $server_ip `df -h | grep -w "$p"` over 80% " | mail -s "`date +%Y%m%d-%H%M%S` $server_ip  uesd over 80%" $notice_mail


        else


                echo "`date +%Y%m%d-%H%M%S` `df -h | grep -w "$p"` lower 80% "


        fi


done

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