Monitoring a log file which changes its name hourly

[hlavender]

Okay. team, I need your assistance.

I have to monitor a log file on a server. The log file name is XXX.HH - where HH is the current hour in 24 hour format. So, at the start of the night, the log file is named XXX.00, and between 1 am and 1:59:59 it is XXX.01, and so forth.
What I need to do is to read this file and send alerts if a regular expression is found. Any idea how to do this. I am stumped.

This must be easy but...

 

[KevinADC]

have you tried anything? Do you liteally mean you want to find a perl regular expression in the file?

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- Kevin, perl coder unexceptional!

 

[hlavender]

Sorry. No.. I was simply having problems figuring out how to switch to the next file at the top of the hour. My problem was I was (stupidly) using "tail" to read from the file. I modifed the program to read a line at a time and it appears to work.

Sorry to bother "the board".

 

[brigmar]

So your problem now is just identifying which log file to use?

$latest_log_file = "XXX.".substr(localtime(),11,2);