Book Image

Linux Command Line and Shell Scripting Techniques

By : Vedran Dakic, Jasmin Redzepagic
Book Image

Linux Command Line and Shell Scripting Techniques

By: Vedran Dakic, Jasmin Redzepagic

Overview of this book

Linux Command Line and Shell Scripting Techniques begins by taking you through the basics of the shell and command-line utilities. You’ll start by exploring shell commands for file, directory, service, package, and process management. Next, you’ll learn about networking - network, firewall and DNS client configuration, ssh, scp, rsync, and vsftpd, as well as some network troubleshooting tools. You’ll also focus on using the command line to find and manipulate text content, via commands such as cut, egrep, and sed. As you progress, you'll learn how to use shell scripting. You’ll understand the basics - input and output, along with various programming concepts such as loops, variables, arguments, functions, and arrays. Later, you’ll learn about shell script interaction and troubleshooting, before covering a wide range of examples of complete shell scripts, varying from network and firewall configuration, through to backup and concepts for creating live environments. This includes examples of performing scripted virtual machine installation and administration, LAMP (Linux, Apache, MySQL, PHP) stack provisioning and bulk user creation for testing environments. By the end of this Linux book, you’ll have gained the knowledge and confidence you need to use shell and command-line scripts.
Table of Contents (19 chapters)

Compiling third-party software

Sometimes, a package for a certain application is just not available – either nobody bothered to create it, or that application is so old that it's obsolete and nobody wants to do it. Either way, if an application is useful to us, there's no reason why we shouldn't try to find its source code and compile it.

Compiling software from source code can sometimes be like dark magic, and we have a good example coming up very soon. Sometimes it works without any real effort, and we are going to show you an example of that, too. The main distinction between those two scenarios seems to be the all-important dependencies and their version. Also, there's a lot of software for Linux that needs to be compiled in a specific sequence. A perfect example of that is the LAMP stack. After installing Linux, if you want to compile Apache, MySQL, and PHP, you had better do it in the correct order. Otherwise, your keyboard might find its way to...