Shell Programming and Scripting

Originally Posted by manju98458

Hi,

Not yet started because the log file is huge and everyday I have to monitor this log at every 3 hour once and if the string found it should
send an email.

---------- Post updated 07-18-12 at 04:59 PM ---------- Previous update was 07-17-12 at 09:57 PM ----------

#!/bin/bash
ECHO=/bin/echo
> /tmp/temp3.txt

String=`tail /var/logs/messages | grep -n " API Failure" | awk '{print $10}'` > /tmp/alert.txt
This wont work ...
if [ "$String" != "API Failure" ]
this should be ==
then
STATUS="Info"
$ECHO "From: xxx@test.com" >> /tmp/temp3.txt
$ECHO "Subject: API Failure - $DATE " >> /tmp/temp3.txt
$ECHO "Dear Team" >> /tmp/temp3.txt
$ECHO " " >> /tmp/temp3.txt
$ECHO "API Failure !" >> /tmp/temp3.txt
$ECHO " " >> /tmp/temp3.txt
$ECHO "-----------------------------" >> /tmp/temp3.txt
$ECHO `hostname` >> /tmp/temp3.txt
$ECHO "-----------------------------" >> /tmp/temp3.txt
$ECHO "Regards," >> /tmp/temp3.txt
$ECHO "Support admin" >> /tmp/temp3.txt
/usr/sbin/sendmail -f xxx@xp.com yyy@.bpcom < /tmp/temp3.txt
fi

Here is my script please advise me , if any code change. My ultimate aim is to
grep the log 3 hours before from the time and it should check for the error
if found it should send an alert email.