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help writing a scipt to search for errors.

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Top Forums Shell Programming and Scripting help writing a scipt to search for errors.
# 1  
Old 11-09-2010
Question help writing a scipt to search for errors.
Hi, I am a beginner unix user. I would appreciate any help you guys can provide me with. What I am looking to do is the following. I have a log file that gets generated every morning.

Example: /home/me/folder/temp.log
temp.log will say "Socket connected" if the connection was successful, or it will "Error: socket error" if the connection fails to connect. I am looking for a script that will search this log every morning and send me an e-mail (me@anything.com) with a the results.
"successful connection date" or "connection failed date".

I have been playing around with different scripts, but can not seem to get this work, again I am a beginner at this. Would really appreciate the help.
# 2  
Old 11-09-2010
Pls provide an exemple of the content of the logfile

---------- Post updated at 01:17 AM ---------- Previous update was at 01:08 AM ----------

In short, feel free to use and adapt to your needs
Code:
LOGFILE=/home/me/folder/temp.log
if ( grep 'Error: socket error' ${LOGFILE} >/dev/null 2>&1 )
then
     echo "connection failed date" | mailx -s "Daily Check KO" you@your-work.com
elif ( grep 'Socket connected' ${LOGFILE} >/dev/null 2>&1 )
then
     echo "successful connection date" | mailx -s "Daily Check OK" you@your-work.com
else
     echo "Socket State not found, please check access and content of ${LOGFILE}"
fi

and schedule that in crontab on a daily basis
# 3  
Old 11-09-2010
thanks you!!
Thanks for helping...

a sample of my an error in the log would be: (ip and port is replace by X's)

11-04 06:56:46 LOG ERROR Socket Read Error
11-04 06:56:46 LOG DEBUG -> ConnInfo=2xx.2xx.1xx.xx,xxxxx,N/A,N/A<28>
11-04 06:56:46 LOG DEBUG -> Exch=NAMEOFEXCHANGE<9>
11-04 06:56:46 LOG DEBUG -> Status=DOWN<4>


a sample of a good log is a little different: It does not really have a connected sign, it is just different that the error log.

11-05 06:51:56 LOG INFO Reading the socket for data , if any.....
11-05 09:11:02 LOG DEBUG Total msg received: >X<
11-05 09:11:02 LOG INFO Raw Body Msg

I used your script and modified it, however I can not get it to email any status. When I run the script I get the message at the end of the script

"Socket State not found, please check access and content of (Value of $(LOGFILE))"
Does this mean that the script can see the file?
# 4  
Old 11-10-2010
Quote:
Originally Posted by Jeffenri
...
I used your script and modified it, however I can not get it to email any status. ...
That's because the control would've gone to the "else" part of the script.

Code:
...
...
else
    echo "Socket State not found, please check access and content of ${LOGFILE}"
fi

No email is sent in that case.

Quote:
...
When I run the script I get the message at the end of the script

"Socket State not found, please check access and content of (Value of $(LOGFILE))"
...
This could mean that the following two strings -

Code:
(1)  'Error: socket error'
(2)  'Socket connected'

are not present in your log file, due to which the "if" and "elif" conditions would be FALSE. Check your log file.

tyler_durden
# 5  
Old 11-10-2010
Then make sur that the string you grep do match what you are looking for :
according to your logfile :
the 2 lines
Code:
if ( grep 'Error: socket error' ${LOGFILE} >/dev/null 2>&1 )
...
elif ( grep 'Socket connected' ${LOGFILE} >/dev/null 2>&1 )

should be replaced by
Code:
if ( grep 'ERROR Socket Read Error' ${LOGFILE} >/dev/null 2>&1 )
...
elif ( grep 'Total msg received' ${LOGFILE} >/dev/null 2>&1 )

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