July 2005
Intermediate to advanced
944 pages
158h 24m
English
book
Linux in a Nutshell, Fifth Edition
by Ellen Siever, Aaron Weber, Stephen Figgins, Robert Love, Arnold Robbins
Content preview from Linux in a Nutshell, Fifth Edition
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Common Commands | 15
Sys Admin
Overview
This is the Title of the Book, eMatter Edition
Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.
Installation
Mail
Managing Filesystems
To Unix systems, a filesystem is a device (such as a partition) that is formatted to
store files. Filesystems can be found on hard drives, floppies, CD-ROMs, USB
drives, or other storage media that permit random access.
The exact format and means by which the files are stored are not important; the
system provides a common interface for all filesystem types that it recognizes. By
default, almost all modern distributions of Linux use a journaling filesystem.
When the kernel interacts with a journalling filesystem, writes to disk are first
written to a log or journal before they are written to disk. This slows down writes
to the filesystem, but reduces the risk of data corruption in the event of a power
outage. It also speeds up reboots after a system unexpectedly loses power.
Most current Linux distributions default to the Third Extended (ext3) Filesystem.
The ext3 filesystem was developed primarily for Linux and supports 256-char-
acter filenames and 4-terabyte maximum filesystem size. This ext3 filesystem is
essentially a Second Extended (ext2) filesystem with an added journal. Since it is
in all other ways identical to the ext2 system, it is both forward- and backward-
compatible with ext2—all ext2 utilities ...
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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.