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Shell script partitions space monitor

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# 1  
Old 05-06-2009
Shell script partitions space monitor
Hello friends,

I'm newbie in shell scripting...
Until now i have this script:


Code:
 
#!/bin/sh
emailok = email1@domain.com
emailissue = email2@domain.com
limit="50"
df -h | grep -vE '^Filesystem' | awk '{print $1 " " $4 " " $5}'|while read val
do
partition=$(echo $val | awk '{print $1}')
echo "partition:$partition"
usedspace=$(echo $val | awk '{print $3}'| cut -d'%' -f1)
echo "usedspace:$usedspace%"
availspace=$(echo $val | awk '{print $2}')
echo "space available:$availspace"
echo "limit:$limit"
if [ $usedspace -gt $limit ]; then
echo "less than 50% space in $partition = $availspace"|mail -s "space info" $emailissue
else
echo "All ok." |mail -s "space info" $emailok
fi
done

the problem is that i have 2 partitions, and i receive 2 mails. If i have more than 2, then i will receive more mails.

what i want is to receive 1 mail, with 2 or more messages.

any ideas?
Last edited by john_doe; 05-06-2009 at 10:53 AM..
# 2  
Old 05-06-2009
nobody?
# 3  
Old 05-06-2009
Try this:

Code:
#!/bin/sh
emailok = email1@domain.com
emailissue = email2@domain.com
limit="50"
msgtxt=/tmp/email_msg.txt
msgok =/tmp/msg_ok.txt
touch $msgtxt
touch $msgok 

df -h | grep -vE '^Filesystem' | awk '{print $1 " " $4 " " $5}'|while read val
do
partition=$(echo $val | awk '{print $1}')
echo "partition:$partition"
usedspace=$(echo $val | awk '{print $3}'| cut -d'%' -f1)
echo "usedspace:$usedspace%"
availspace=$(echo $val | awk '{print $2}')
echo "space available:$availspace"
echo "limit:$limit"
if [ $usedspace -gt $limit ]; then
echo "less than 50% space in $partition = $availspace" >> $msgtxt
else
echo "All ok." > $msgok 
fi
done

if [ -s $msgtxt ]; then
cat $msgok | mail -s "space info" $emailok 
else
cat $msgtxt | mail -s "space info" $emailissue
fi


cheers,
Devaraj Takhellambam
# 4  
Old 05-06-2009
Thanks a lot...
I've did some changes...

Code:
 
!/bin/bash
emailok=email@domain.com
emailissue=email2@domain.com
limit="50"
msgissue=/tmp/msgissue.txt
msgok=/tmp/msgok.txt
touch $msgissue
touch $msgok
df -h | grep -vE '^Filesystem' | awk '{print $1 " " $4 " " $5}'|while read val
do
partition=$(echo $val | awk '{print $1}')
echo "partition:$partition"
usedspace=$(echo $val | awk '{print $3}'| cut -d'%' -f1)
echo "usedspace:$usedspace%"
availspace=$(echo $val | awk '{print $2}')
echo "space available:$availspace"
echo "limit:$limit"
if [ $usedspace -gt $limit ]; then
echo "less then 50% space in $partition .">$msgissue
else
echo "All ok.">$msgok
fi
done
if [ -s $msgissue ]; then
cat $msgok | mail -s "space info" $emailok
else
cat $msgissue | mail -s "space info" $emailissue
fi

now I get an empty mail, instead of a mail with issue message.... Smilie why?
Last edited by john_doe; 05-06-2009 at 11:45 AM..
# 5  
Old 05-06-2009
1.Can you check what are the contents of these files?
Code:
msgissue=/tmp/msgissue.txt
msgok=/tmp/msgok.txt

2. This should be a double redirect ( append mode) as this is in a loop.
Code:
echo "less then 50% space in $partition .">>$msgissue


cheers,
Devaraj Takhellambam
# 6  
Old 05-06-2009
1.I've already checked...

/tmp/msgok.txt has "All ok" message

/tmp/msgissue.txt is empty

2.Now it's doubled...

Still problems....

Code:
Null message body; hope that's ok

# 7  
Old 05-06-2009
Can you change the mail command to

Code:
mailx -s "space info"  $emailok < $msgok

and
Code:
mailx -s "space info" $emailissue < $msgissue


cheers,
Devaraj Takhellambam
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