October 2000
Intermediate to advanced
1152 pages
26h 41m
English
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Working as root
In order for the system administrator to perform his many duties, he can assume super-user privileges to perform tasks not normally available to the average user of the system. The superuser performs these tasks as user root. root is a special user account that is available on every UNIX system. This special user has full access to the system. The system ignores all permissions when responding to commands from the root user, providing read, write, and execute permissions to every file and device known to the system.
What does the power of root mean in practical terms? The command rm -rf / run as root could delete the entire system. It also means that root has access to all data. Complete access is helpful for backing up and restoring ...
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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.