Book Image

Linux Utilities Cookbook

By : James Kent Lewis
Book Image

Linux Utilities Cookbook

By: James Kent Lewis

Overview of this book

<p>Linux is a stable, reliable and extremely powerful operating system. It has been around for many years, however, most people still don't know what it can do and the ways it is superior to other operating systems. Many people want to get started with Linux for greater control and security, but getting started can be time consuming and complicated. <br /><br />A practical, hands-on guide that provides you with a number of clear step-by-step examples to help you solve many of the questions that crop up when using an operating system you may not be familiar with.</p> <p>Presenting solutions to the most common Linux problems in a clear and concise way, this helpful guide starts with spicing up the terminal sessions by command retrieval and line editing, and shell prompt variables. We will then get to know the different desktops (GUIs) available for Linux systems and which is the best fit for you. We will then explore the world of managing files and directories, connectivity, and what to do when it goes wrong. We will also learn a range of skills, from creating and managing user accounts to securing your system, managing and limiting processes, and letting information flow from one process to another using pipes. Later, we will master disk management, working with scripts and automating tasks quickly, and finally, understand the need for a custom kernel and tips on how to build one.</p> <p><br />Based on the author's extensive experience, there is a section on best practices that every Linux user should be familiar with.</p>
Table of Contents (19 chapters)
Linux Utilities Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Sending output from one terminal to another


This is a really handy feature that is unique to Linux/UNIX systems. It's most useful in scripts but can be used on the command line as well. If you have a system available try the given steps.

Getting ready

You will need two open terminals.

How to do it...

We show how to send the output from one terminal to another in the following steps:

  1. In one terminal run the tty command. The output should be something like /dev/pts/16.

  2. In the other terminal run the route command. You will see the output in that terminal.

  3. Now run route again, but now using the command:

    route > /dev/pts/16
    
  4. The output will go to that other terminal.

How it works...

Terminals on Linux systems are devices that have their own buffer space. By referring to the device by name you can write to it.

There's more...

This feature is even more useful in scripts, which we will see in Chapter 8, Working with Scripts.