How to alert if no output from tail -f command


 
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# 1  
Old 05-30-2010
How to alert if no output from tail -f command

Hi Dears,
I am using AWK script to monitor some log files. My awk will get the input from the output of tail -f LOGFILE. (tail -f LOGFILE | myawkanalyzer)

My doubt is, How can I notify, if I didn't get any output from the tail -f command. i.e) Log file stuck for some reason. I want to display some alert message as "Log file stuck. blah blah"...

I hope my message is clear. Please excuse me if the info is not clear.

Regards,
Sharif.
# 2  
Old 05-30-2010
tail -f, will always be "stuck", it opens the file and displays in realtime what is beeing written to it, at times when nothing is written it is "stuck", but you wont be able to identify these type of "stuck".

I belive a similar issue was discussed in this thread altho this was monitoring and reporting when new lines were written, same logic applies to your situation.
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