A Practical Guide to Linux Commands, Editors, and Shell by Mark G. Sobell

By Mark G. Sobell

For use with all models of Linux, together with Ubuntu,™ Fedora,™ openSUSE,™ purple Hat,® Debian, Mandriva, Mint, and now OS X, too!

Get extra performed swifter, and develop into a real Linux guru via getting to know the command line!

* examine from 1000's of real looking, top of the range examples
* NEW! assurance of the Mac OS X command line and its specified instruments
* NEW! professional primer on automating initiatives with Perl

The most dear Linux instructional and Reference, with hundreds of thousands of top quality Examples for each Distribution–Now Covers OS X and Perl, Too!

To be really effective with Linux, you must completely grasp shells and the command line. before, you needed to purchase books to achieve that mastery: an instructional on primary Linux options and methods, plus a separate reference. Now, there’s a better answer. well known Linux specialist Mark Sobell has introduced jointly entire, insightful counsel at the instruments procedure directors, builders, and tool clients want so much, and a very good daily reference, either within the similar book.
This e-book is 100% distribution and free up agnostic: you should use it with any Linux approach, now and for years yet to come. Use Macs, too? This re-creation provides entire assurance of the Mac OS X command line, together with crucial OS X-only instruments and utilities different Linux/UNIX books forget about.

Packed with countless numbers of top quality, reasonable examples, this publication offers Linux from the floor up: the clearest motives and most precious wisdom approximately every thing from filesystems to shells, editors to utilities, and programming instruments to average expressions. Sobell has additionally extra an excellent new primer on Perl, an important programming instrument for Linux admins looking to automate advanced, time-consuming tasks.
A useful advisor to Linux® instructions, Editors, and Shell Programming, moment Edition, is the one booklet to deliver
larger, extra practical examples masking initiatives you’ll really want to accomplish
* Deeper perception, according to Sobell’s big wisdom of each Linux and OS X corner and cranny
* A start-to-finish primer on Perl for each process administrator
* In-depth insurance of uncomplicated and complex Linux shell programming with bash and tcsh
* functional causes of a hundred center utilities, from aspell to xargs–including Mac OS X particular utilities from ditto to SetFile
* All-new assurance of automating distant backups with rsync
* Dozens of approach safety counsel, together with step by step walkthroughs of imposing safe communications utilizing ssh and scp
* counsel and methods for customizing the shell and utilizing it interactively from the command line
* entire publications to high-productivity modifying with either vim and emacs * A accomplished, 286-page command reference section–now with revised and elevated indexes for quicker entry to the data you wish
* directions for updating platforms immediately with apt-get and yum * Dozens of workouts that will help you perform and achieve self assurance
* and masses extra, together with assurance of BitTorrent, gawk, sed, find, sort, bzip2, and standard expressions

Praise for the 1st version of a pragmatic advisor to Linux instructions, Editors, and Shell Programming

“First Sobell taught humans the best way to use Linux…now he teaches you the facility of Linux. a must have e-book for a person who desires to take Linux to the subsequent level.”

—Jon “maddog” corridor, govt Director, Linux International

“This e-book is a truly useful gizmo for somebody who desires to ‘look lower than the hood’ in an effort to communicate, and very commence placing the ability of Linux to paintings. What i locate rather problematical approximately guy pages is they by no means comprise examples. Sobell, however, outlines very basically what the command does after which provides a number of universal, easy-tounderstand examples that make it a breeze to begin shell programming on one’s personal. As with Sobell’s different works, this can be basic, straight-forward, and straightforward to learn. It’s a very good ebook and should remain at the shelf at effortless arm’s succeed in for an extended time.”

—Ray Bartlett, commute Writer

“Overall i discovered this publication to be fairly very good, and it has earned a place at the very entrance of my bookshelf. It covers the genuine ‘guts’ of Linux—the command line and its utilities—and does so rather well. Its most powerful issues are the phenomenal use of examples, and the Command Reference part. hugely instructed for Linux clients of all ability degrees. good performed to Mark Sobell and Prentice corridor for this impressive book!”

—Dan Clough, Electronics Engineer and Slackware Linux user

“Totally in contrast to such a lot Linux books, this ebook avoids discussing every thing through GUI and jumps correct into making the facility of the command line your friend.”

—Bjorn Tipling, software program Engineer, ask.com

“This ebook is the easiest distro-agnostic, foundational Linux reference I’ve ever obvious, out of dozens of Linux-related books I’ve learn. discovering this e-book used to be a true stroke of good fortune. as a way to quite know how to get issues performed on the command line, the place the facility and adaptability of unfastened UNIX-like OSes relatively reside, this ebook is one of the most sensible instruments you’ll locate towards that end.”

—Chad Perrin, author, TechRepublic

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Extra resources for A Practical Guide to Linux Commands, Editors, and Shell Programming (2nd Edition)

Example text

The Debian Almquist Shell (dash), a smaller version of bash, with fewer features. Most startup shell scripts call dash in place of bash to speed the boot process. 14 Chapter 1 Welcome to Linux and Mac OS X • The TC Shell (tcsh), an enhanced version of the C Shell, developed as part of BSD UNIX. • The Z Shell (zsh), which incorporates features from a number of shells, including the Korn Shell. Because different users may prefer different shells, multiuser systems can have several different shells in use at any given time.

It does not require programming experience, although some experience using a computer is helpful. It is appropriate for the following readers: • Students taking a class in which they use Linux or Mac OS X • Power users who want to explore the power of Linux or Mac OS X from the command line Preface xxxiii • Professionals who use Linux or Mac OS X at work • Beginning Macintosh users who want to know what UNIX/Linux is, why everyone keeps saying it is important, and how to take advantage of it • Experienced Macintosh users who want to know how to take advantage of the power of UNIX/Linux that underlies Mac OS X • UNIX users who want to adapt their UNIX skills to the Linux or Mac OS X environment • System administrators who need a deeper understanding of Linux or Mac OS X and the tools that are available to them, including the bash and Perl scripting languages • Computer science students who are studying the Linux or Mac OS X operating system • Programmers who need to understand the Linux or Mac OS X programming environment • Technical executives who want to get a grounding in Linux or Mac OS X Benefits A Practical Guide to Linux® Commands, Editors, and Shell Programming, Second Edition, gives you an in-depth understanding of how to use Linux and Mac OS X from the command line.

Sandboxes—A VM presents a sandbox—an area (system) that you can work in without regard for the results of your work or for the need to clean up. • Snapshots—You can take snapshots of a VM and return the VM to the state it was in when you took the snapshot simply by reloading the VM from the snapshot. Xen Xen, which was created at the University of Cambridge and is now being developed in the open-source community, is an open-source VMM. Xen introduces minimal performance overhead when compared with running each of the operating systems natively.

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