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English | 2017 | ISBN-10: 1784396877 | 502 pages | PDF + EPUB + MOBI(conv) | 5 Mb
System administration is an everyday effort that involves a lot of tedious tasks, and devious pits. Knowing your environment is the key to unleashing the most powerful solution that will make your life easy as an administrator, and show you the path to new heights. Bash is your Swiss army knife to set up your working or home environment as you want, when you want.
This book will enable you to customize your system step by step, making your own real, virtual, home out of it. The journey will take you swiftly through the basis of the shell programming in Bash to more interesting and challenging tasks. You will be introduced to one of the most famous open source monitoring systems-Nagios, and write complex programs with it in any languages. You'll see how to perform checks on your sites and applications.
Moving on, you'll discover how to write your own daemons so you can create your services and take advantage of inter-process communication to let your scripts talk to each other. So, despite these being everyday tasks, you'll have a lot of fun on the way. By the end of the book, you will have gained advanced knowledge of Bash that will help you automate routine tasks and manage your systems.
What you will learn
Understand Bash right from the basics and progress to an advanced level
Customise your environment and automate system routine tasks
Write structured scripts and create a command-line interface for your scripts
Understand arrays, menus, and functions
Securely execute remote commands using ssh
Write Nagios plugins to automate your infrastructure checks
Interact with web services, and a Slack notification script
Find out how to execute subshells and take advantage of parallelism
Explore inter-process communication and write your own daemon