Run script once at certain date and time

winairmvs · 03-18-2010, 04:09 PM

I was wondering if anyone has discovered a way of either using cron or by custom scripting, to run a script at a certain date and time only once. The purpose would be to make one-off changes to dns zone files, or to virtual host configs on an apache server, or changing any type of text file at say 12:01am rather than waking up at 12:01am (when our maintenance windows start) to make changes to production servers.

Thanks!

troop · 03-18-2010, 04:12 PM

man at

Code:

at task -v 12:01

winairmvs · 03-18-2010, 04:17 PM

Well nevermind, it seems the command 'at' and 'batch' can accomplish just about everything I am looking for.

winairmvs · 03-18-2010, 04:22 PM

Quote:

Originally Posted by troop

man at

Code:

at task -v 12:01

After reading the man page I did not see anything about how to cancel a scheduled task. Is there a way to cancel the an 'at' task?

colucix · 03-18-2010, 05:04 PM

Quote:

Originally Posted by winairmvs

After reading the man page I did not see anything about how to cancel a scheduled task. Is there a way to cancel the an 'at' task?

The command is atrm. It should be listed and described together with at and atq in the mentioned manual page.

These articles should give some insight about scheduling jobs in Linux:
http://www.linuxjournal.com/article/4087
http://www.ibm.com/developerworks/li...cheduling.html