Date: Tue, 13 May 2003 10:03:40 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Guy Van Sanden <n.b@myrealbox.com> Cc: freebsd-questions@freebsd.org Subject: Re: Trigger on file change Message-ID: <20030513150340.GA25807@dan.emsphone.com> In-Reply-To: <1052826451.27682.29.camel@horus> References: <1052826451.27682.29.camel@horus>
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In the last episode (May 13), Guy Van Sanden said: > I need to have a script run everytime a file changes. The file only > changes once every month (tops), but the script needs to be run > rather fast after the change (5-10 minutes) > > I thought of leaving the script looping, making a checksum / date > check every time and sleeping the rest, but it seems like a lot of > overhead (disk access). > > Does anyone know of a utility that can do this, possibly one that can > monitor filehandlers in the kernel? Try the wait_on port; it registers a kevent for each filename or directory listed on the commandline, then waits for something to happen. -- Dan Nelson dnelson@allantgroup.com
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