April 2006
Intermediate to advanced
624 pages
12h 2m
English
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10. cron and at
The cron and at packages provide Linux users with a method for scheduling jobs. at is used to run a job once. cron is used to run jobs on a schedule. If a report should be run every Friday at 8 p.m., cron is perfect for the job. If a user wants to run a sweep of the system to find a misplaced file, the job can be scheduled to run that evening using the at command.
This chapter explains how cron and at work. You might not be familiar with the anacron and kcron packages, but they extend the features of cron. We also explain these tools in this chapter. We show how to use cron and the other utilities, but we also show how they work and provide examples of what can go wrong.
This chapter is organized into the following sections:
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.