June 2015
Intermediate to advanced
190 pages
4h 4m
English
Content preview from Troubleshooting CentOSBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Restoring file and directory permissions
File and directory permissions are important, and to view the current state of all the files in a particular directory, you can run the following command:
# ll
Alternatively, you can target a particular directory by running:
# ll /path/to/directory
However, in a situation where someone has mistakenly changed the permissions of a particular system-based file or folder this calamitous situation can be rectified with the following RPM-based commands:
# rpm --setugids PACKAGENAME # rpm --setperms PACKAGENAME
On the other hand, should it be the case that an entire directory has been mistakenly updated with chown or the chmod commands, the following commands will prove more useful:
# for package in $(rpm -qa); ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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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.