标签：shell
1.磁盘剩余空间不足80%
#!/bin/bash
#Usage:if the disk use%>80%,give an alarm
#Author:chengyanli
#Date:2016/7/14
IP=`ip addr show|sed ‘8!d‘|awk ‘{print $2}‘|cut -f 1 -d ‘/‘` #local ip
USER=742019722@qq.com #mail
DISKUSED=`df -h |awk ‘{print $5}‘|sed ‘2!d‘|awk -F ‘%‘ ‘{print $1}‘` #The use of the disk
NUM=80 #The standard number
if [ "$DISKUSED" -gt "$NUM" ] ;then
echo -e "Notice:${IP} disk use>80%,plz do something:\n\n`df -h`\n\n`date +%Y-%m-%d`"|mail -s ‘WARNING‘ $USER
else
echo $IP disk is ok
fi
2.cpu及内存、虚拟内存查看并报警
cat 2_cpu+mem.sh
#!/bin/bash
#Usage:if the cpu or mem or virtmem use% > 80%,give an alarm
#Author:chengyanli
#Date:2016/7/14
IP=`ip addr show|sed ‘8!d‘|awk ‘{print $2}‘|cut -f 1 -d ‘/‘`
USER=742019722@qq.com
#The use of cpu,mem and virtmem
cpu=`top -n 1 | grep Cpu | awk ‘{print $5}‘ |awk -F ‘.‘ ‘{print $1}‘`
mem=`free -m | sed ‘2!d‘ | awk -F ‘ ‘ ‘{print $3/$2*100}‘ | awk -F ‘.‘ ‘{print $1}‘`
virtmem=`free -m|sed ‘4!d‘|awk ‘{print $3/$2*100}‘|awk -F ‘.‘ ‘{print $1}‘`
#This is about cpu
if [ "$cpu" -le 20 ]; then
echo "Notice:${IP} cpu use > 80%,plz do something "| mail -s ‘WARNING‘ $USER
fi
#This is about mem
if [ "$mem" -ge 80 ]; then
echo "Notice:${IP} mem use > 80%,plz do something "| mail -s ‘WARNING‘ $USER
fi
#This is about virtmem
if [ "$virtmem" -ge 80 ]; then
echo "Notice:${IP} virtmem use > 80%,plz do something "| mail -s ‘WARNING‘ $USER
fi
3.进程丢失报警
cat 3.4_procs.sh
#!/bin/bash
#Usage:if the server process lost,give an alarm
#Author:chengyanli
#Date:2016/7/14
IP=`ip addr show|sed ‘8!d‘|awk ‘{print $2}‘|cut -f 1 -d ‘/‘`
USER=742019722@qq.com
pgrep server > /dev/null 2>&1
if [ $? != 0 ]; then
echo "Notice:${IP} server process lost"|mail -s ‘WARNING‘ $USER
elif [ $? = 0 ];then
echo ‘The server process is ok‘
fi
4.磁盘监控及报警
cat 5_disk.sh
#!/bin/bash
#Usage:if disk is not ok ,give an alarm
#Author:chengyanli
#Date:2016/07/19
IP=`ip addr show|sed ‘8!d‘|awk ‘{print $2}‘|cut -f 1 -d ‘/‘`
USER=742019722@qq.com
#all disk in localhost
disklist=`ls -l /dev|grep -E ‘\bhd[a-z]$|\bsd[a-z]$‘|awk ‘{print $10}‘`
#check disk is ok,if not then give an alarm
for i in $disklist
do
smartctl -s on -a $disklist|grep OK
if [ $? != 0 ]; then
echo -e "Notice:${IP} $disklist status is not ok:\n\n`smartctl -a $disklist`\n\n`date +%Y-%m-%d`"|mail -s ‘WARNING‘ $USER
fi
done
5.监控ssh的连通性
cat 6_ssh.sh
#!/bin/bash
#Usage:Juage ssh is ok or not
#Author:chengyanli
#Date:2016/7/18
#This is the module check remote 22
for ip in `cat /mnt/ip_only`
do
nc -z -v -n $ip 22 >/dev/null 2>&1
if [ $? = 0 ];then
echo "${ip}:ssh is ok"
else
echo "{$ip}:ssh is not ok"
fi
done
6.监控crontab正常性
cat 7_crontab.sh
#!/bin/bash
#Usage:judge crontab is normal
#Author:chengyanli
#Date:2016/07/14
#start crontd
/etc/init.d/crond status|grep running /dev/null 2>&1
if [ $? != 0 ]; then
/etc/init.d/crond start >/dev/null 2>&1
fi
#check crontab is ok
/bin/rm -f /tmp/test_cron.txt
echo "*/1 * * * * /bin/touch /tmp/test_cron.txt" > /var/spool/cron/root
sleep 60
if [ -f /tmp/test_cron.txt ]; then
echo ‘the crontab is ok‘
else
echo ‘the crontab is not ok‘
fi
7.home分区不可写
cat 11_home.sh
#!/bin/bash
#Usage:judge the /home is writable or not
#Author:hengyanli
#Date:2016/7/15
#If the file exists,delete it
if [ -f "file" ]; then
rm -f file
fi
#touch file to check home can write
touch /home/file
if [ $? != 0 ]; then
echo ‘The /home can not write‘
else
echo ‘The /home can write‘
fi
本文出自 “真水无香” 博客，请务必保留此出处http://chengyanli.blog.51cto.com/11399167/1846781
标签：shell
原文地址：http://chengyanli.blog.51cto.com/11399167/1846781
