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Script To Send Warning

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# 1  
Old 12-02-2010
Script To Send Warning
Hi,

I have a variable that grep's on multiple words in a log file. When a certain value is met I would like to send a warning by email. I have tested on a
log file that contains the search words however I do not receive any email.

Here is what I have:

Code:
 
STRING=$(grep 'ctx|saw|EJBException' /apps/jboss-old/server/hk/log/server.log.20101202.bak | tail -1 | wc -l)
 
if (( ${STRING} > 0 ));
 
then
 
printf "-------------------Possible Restart Of HK Jboss Required-------------------" > jboss_error_log.txt
 
cat jboss_error_log.txt | mailx -s "HK Jboss Issue Found" myemail@mycompany.com.au
 
fi

I will be running a cron job every 15 minutes

Where am I going wrong and is there is a better way to do this?

Thanks in advance
# 2  
Old 12-02-2010
To send mail I personally prefer to the following commands:
Code:
echo -e "From: sender <sender@yourcompany.com>\nSender: sender <sender@yourcompany.com>\nTo: kevintse <user@gmail.com>\nSubject: Subject goes here\n\nMain text goes here\n" | sendmail user@gmail.com

If you don't receive mails with the commands above, checkout /var/log/maillog.
P.S. Make sure sendmail is started.
# 3  
Old 12-05-2010
Turns out that I was running the the wrong grep command for the search
in the variable. This meant that the string variable would only return a value of 0 and as a result no text file was created and no email was sent when error was detected. Changed to egrep 'ctx|saw|EJBException'

kevintse - thanks for your input.
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