Using and Administering Linux: Volume 1 – Zero to SysAdmin: Getting Started is Now Available
Volume 1 of this series is now available in electronic and softcopy versions. At Apress and Amazon.
I have been working on the 2nd Edition of this series for a year and now the first volume is available at both Apress and Amazon. This volume is available in softcopy and e-pub from both sites. Apress also has it in PDF format. Purchasing the electronic version at Apress gives you both e-pub and PDF versions.
I’m very happy with the way all three volumes have turned out. All of the errata that was in the 1st Edition have been resolved. New chapters have been added for NetworkManager, systemd, and more. Some existing chapters have been significantly revised while others have been moved to a new sequence that provide a better subject matter flow.
Refer to Using and Administering Linux – Zero to SysAdmin: 2nd Edition here on this website for details of all three volumes.
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Regular Expressions #3: grep — Data flow and building blocks
In Regular Expressions #1: Introduction, I covered what they are and why they’re useful. In Regular Expressions #2: An example, we looked at a more complex example of the uses of regular expressions.
In this third of four articles you’ll learn how to make tighter matches with your regexes.
Ansible #3: Finishing our Ansible playbook to manage workstation and server updates
In part two of this series on writing Ansible playbooks, “Ansible #2 How to create an Ansible Playbook,” we examined the task of installing updates for servers and workstations. This playbook is intended to manage updates differently depending on the role the systems play on the network. Last time we created the play designed to install updates on the Ansible hub. This time we add two more plays; one to install updates on the servers and another to install updates on the regular workstations.
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Regular Expressions #2: An example
In the previous article, Regular Expressions #1: Introduction, I covered what they are and why they’re useful.
The example in this article highlights the power and flexibility of the Linux command line, especially regular expressions, for their ability to automate common tasks.
Open source School tools for our adult learners!
Image by: Opensource.com CC-by-SA 4.0 This is an entertaining listicle of what I’ll be covering over the next couple articles...
Regular Expressions #1: Introduction
Regular expressions don’t have to invoke anxiety and fear, although they do for many of us. The function of regular expressions is to provide a highly flexible tool for matching strings of characters in a stream of data. When a match is found, the program’s action can be as simple as to pass the line of data in which it’s found on to STDOUT, or as copmplex as replacing that string with another.