prevent grepping same value in logfile

scofiled83 · 07-12-2009, 04:01 AM

Hello

I have log file name alert.log which is updated frequently.

If there is an error in this logfile which start with ORA-..
I want to send the error message as an email.

Assume I have a cron job which performs this task every 5 minutes.
What I wanna ask is:
If ORA- error occurs,it will send an email,5 minutes later it will again send the same email, and so on.

How can I prevent duplicate emails? (Hp-Unix)

scottro11 · 07-12-2009, 04:35 AM

I have a post on CentOS forums about using swatch that might do what you want.

http://www.centos.org/modules/newbb/...&post_id=78114

raj77_in · 07-12-2009, 10:49 AM

another option could be copy the file to /tmp or any other place and then do the grep. Next run, grep on the diff of two files and overwrite the earlier file.

scofiled83 · 07-12-2009, 11:28 PM

Hi
I am not clear with your suggestion.
Could you give an example?

PMP · 07-13-2009, 02:07 AM

What i will suggest you is to put a marker in the file when you are done sending mail, and then next time start from this marker.

pixellany · 07-13-2009, 07:00 AM

Quote:

Originally Posted by scofiled83

Hi
I am not clear with your suggestion.
Could you give an example?

Whose post are you replying to? Regardless, tell us exactly which part you don't understand.