You obtain all the names fitting in a date in the dir, you sort the files, you pick the first and break the loop. This is more or less the idea

I had the same problem in one of my small projects, solved using a system line like:

system('for i in `ls -r $(date +%F_%H\:)*.log | head -1`; do emacs $i; done');

Always opening the most recent file as long as the timestamp in its filename is right

(Entire script, just in case you want to read it, here)

In reply to Re: Reading constantly generated log files: Suggestions invited by pvaldes
in thread Reading constantly generated log files: Suggestions invited by perlgsm

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