July 2010
Beginner to intermediate
1344 pages
40h 20m
English
book
Unix® and Linux® System Administration Handbook, Fourth Edition
by Evi Nemeth, Garth Snyder, Trent R. Hein, Ben Whaley
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9. Periodic Processes
Scripting and automation are the keys to consistency and reliability. For example, an adduser program can add new users faster than you can, with a smaller chance of making mistakes. Almost any task can be encoded in a Perl or Python script.
It’s often useful to have a script or command executed without any human intervention. For example, you might want to have a script verify (say, every half-hour) that your network routers and switches are working correctly, and have the script send you email when problems are discovered.1
9.1 CRON: Schedule Commands
The cron daemon is the standard tool for running commands on a predetermined ...
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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.