[linux]磁盘监控程序并且发EMail

#!/bin/sh  

#define alert devel of nagios  
STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2
STATE_UNKOWN=3
above=0

list=`df -h|grep -v "Filesystem"|grep -v "devfs"|awk '{print $6}'`

for disk_name in $list;do
        url=`df -h|grep $disk_name`
        size=`echo $url|awk -F\  '{print "size:" $2}'`;
        used=`echo $url|awk -F\  '{print "used:" $3}'`;
        avail=`echo $url|awk -F\  '{print "avail:" $4}'`;
        capacity=`echo $url|awk -F\  '{print $5}'`;
        mounted=`echo $url|awk -F\  '{print "mounted:" $6}'`;

        percent=`echo $capacity |sed 's/%//g'`
           #echo $percent  
                #echo -e $size $used $avail "capacity:"$capacity $mounted  
       #  if [ "$percent" -ge 70 ];then  
       #         above=1  
       #         echo "the disk $mounted space used above 70%"  
       #         echo $size $used $avail "capacity:"$capacity $mounted  
       #         exit $STATE_WARNING  
       #  else  
       #         above=0  
       #  fi  
       useage=`echo $avail |sed 's/avail://g'|sed 's/G//g'`
       echo $useage
         if [ "$useage" -le 10 ];then
                above=1
                echo $mounted
                echo "the disk $mounted space used less 10G" $size $used $avail "capacity:"$capacity $mounted > warn.txt
                #echo $size $used $avail "capacity:"$capacity $mounted  
                sh mail.sh
                exit $STATE_WARNING
         else
                above=0
         fi

done;

if [ "$above" -eq 0 ];then
         echo "the disk used of space normal"  
         exit $STATE_OK
else
         echo "the disk used state unknow"  
         exit $STATE_CRITICAL
fi

# !/bin/sh  

from_name="from@zhl"
from="xxxxx@yyyy.com"
to="xxxxx@yyyy.com"

email_title="10.18.102.141 disk space less then 10G"
email_content="/home/work/watchdisk/warn.txt"
email_subject="10.18.102.141 disk space less then 10G"

echo -e "To: \"${email_title}\" <${to}>\nFrom: \"${from_name}\" <${from}>\nSubject: ${email_subject}\n\n`cat ${email_content}`" | /usr/sbin/sendmail -t