Re: Event Trigger
In the last episode (Oct 06), Lord Raiden said: > Hi. I'm looking for a simple way to implement a trap and > trigger so to speak. I'm wanting to setup the system so that the > moment it detects a certain event in the system, it immediately > executes another script or program to do something else, but not > before, not after. I thought about Cron, but the thing is, I don't > know when these events will happen so since they're so random, I need > something to identify them then immediately run another script or > program at that exact moment. Any suggestions? It depends on what the event is. With kqueue, you can be notified when a file is changed or a process exits, and you can use those two events to detect just about anything. For example, if you're talking FTP uploads, you can ask to be notified whenever /var/log/xferlog (or whatever file your ftpd uses to log transfers) changes, then process any files that were added since the last time your scanner looked at the logfile. -- Dan Nelson [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Re: Event Trigger
On Sun, 6 Oct 2002, Lord Raiden wrote: > Hi. I'm looking for a simple way to implement a trap and trigger so to > speak. I'm wanting to setup the system so that the moment it detects a > certain event in the system, it immediately executes another script or > program to do something else, but not before, not after. I thought about > Cron, but the thing is, I don't know when these events will happen so since > they're so random, I need something to identify them then immediately run > another script or program at that exact moment. Any suggestions? I haven't used it myself, but this was what the Expect language was designed for. You'll find it in /usr/ports/devel/expect. These will also get you started if you decide to give it a go: http://expect.nist.gov http://www.samag.com/documents/s=7237/sam0207a/0207a.htm Dru To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
Event Trigger
Hi. I'm looking for a simple way to implement a trap and trigger so to speak. I'm wanting to setup the system so that the moment it detects a certain event in the system, it immediately executes another script or program to do something else, but not before, not after. I thought about Cron, but the thing is, I don't know when these events will happen so since they're so random, I need something to identify them then immediately run another script or program at that exact moment. Any suggestions? To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message
