#!/bin/bash

# test common.

#warn=$1

#err=$2

#mount=$3

check_val()

{

    /usr/bin/expr $1 + 100 > /dev/null 2>&1

    return=$(echo $?)

    if [[ ${return} -ne 0 ]]

    then

        echo "please input number."

        exit 1

    fi

}

conf="./check_disk.conf"

if [[ ! -f ${conf} ]]

then

   echo "config file is not exists."

   exit 1

fi

while read line

do

    mount=${line%%=*}

    monitor=${line##*=}

    warn=${monitor%%,*}

    err=${monitor##*,}

    check_val $warn

    check_val $err

   

    #echo "mount: ${mount}; warrn: ${warrn}; err: ${err}"

    #qu ci pan kong jian.

    value=$(df -h | awk '{if($NF == "'"$line"'") print substr($5,1,length($5)-1)}')

   

    if [[ $value -gt ${warn} ]]

    then

        echo "${mount}: disk is full."

        d=$(date +"%s")

        cp /root/shell/log/messages /root/shell/log-bak/messages.${d}

        cat /dev/null > /root/shell/log/messages

    elif [[ $value -gt ${err} ]]

    then

        echo "${mount}: disk is crital."

    else

        echo "${mount}: It's normal."

    fi

done<${conf}

vim check_disk.conf

/=80,90

/boot=80,90

/dev=80,90

#此文件里的项目可自定义增减