shell監控腳本-監控磁盤

shell監控腳本-監控磁盤

注意:請先參考 shell監控腳本-準備工作,監控腳本在 rhel5 下測試正常，其它版本的linux 系統請自行測試
#監控磁盤

cat chk_df.sh
#!/bin/bash
#
#script_name:chk_df.sh
#check disk
#
#last update 20130320 by dongnan
#bbs# http://bbs.ywwd.net/
#blog# http://dngood.blog.51cto.com
#
#df -Th
#Filesystem    Type    Size  Used Avail Use% Mounted on
#/dev/sda1     ext3    9.7G  5.9G  3.4G  64% /
#/dev/sdb1     ext3     79G   73G  2.2G  98% /data
#variables
ssh=/usr/bin/ssh
sh_dir=/root/sh/
crondir=${sh_dir}crontab
source ${sh_dir}CONFIG
hosts="$LINUX_WEB_HOSTS"
user=`id -u`
let df_limit=80
#main
#主循環遍歷機器
for HOST in $hosts ;do
flag_disk_file=$crondir/log/"$HOST".disk
log=$crondir/log/disk_error.log
    #執行ssh 命令
capacity=`$ssh -o ConnectTimeout=2 root@$HOST "df" | grep "/dev/" | sed 's/\%//' | awk '{print $5}'`
    let flags=0
    #無法連接的主機,跳過本次循環
    test -z "$capacity" && continue
    #判斷ssh命令返回結果
    for used in $capacity ;do
        if [ $used -ge $df_limit  ];then
            let flags=1
            break
        fi
    done
   #如果磁盤超過限制,則發送報警郵件
    if [ "$flags" -eq 1 -a ! -f "$flag_disk_file" ];then
        #sms
        #for mobile in "$MOBILES";do
            #echo "$HOST disk will full" | /usr/local/bin/gammu --sendsms TEXT "$mobile" -unicode
        #done
        #mail
        for mail in $MAILS;do
            echo "$HOST disk will full" | mail -s "$HOST disk will full" $mail
        done
        #log
        date +'%F %T' >>$log
        echo "$HOST disk will full" >> $log
        #flag
        echo "disk_error" >$flag_disk_file
    fi
    #如果磁盤正常，則發郵件解除報警郵件
    if [ "$flags" -eq 0 -a  -f "$flag_disk_file" ];then
        #sms
        #for mobile in "$MOBILES";do
            #echo "$HOST disk ok"|/usr/local/bin/gammu --sendsms TEXT "$mobile" -unicode
        #done
        #mail
        for mail in $MAILS;do
            echo "$HOST disk ok" | mail -s "$HOST disk ok" $mail
        done
        #log
        date +'%F %T' >>$log
        echo "$HOST disk ok" >> $log
        #flag
        rm -f $flag_disk_file
    fi
done

#
結束
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