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 but I’m going to ramble...
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.
How to upgrade your Fedora Linux system to the latest release with DNF system-upgrade
Article updated 05/20/2024.
Upgrading any operating system to a new release version can be time-consuming and fraught with problems. Fedora 40 was released very recently and I used these easy steps to upgrade all twelve of my home systems. It was easy and all went well.
Ansible #2 How to create an Ansible Playbook
In this introduction to Playbook creation, we examine a play that manages updates for a local Ansible controller machine.
Open Source and Music Playback
For me at least, music is an indispensable part of my day; much more so than streaming video or television. I tend to be an...
3 things that matter most for a project management tool
Our daily professional lives involve recognizing, prioritizing, and completing tasks. These tasks comprise the larger projects and initiatives that drive company and business success. When you think about it this way, the project management tool and system you choose at work, for yourself or your team, is critical.
Seven Linux commands just for fun
Linux was developed by fun-loving people who created an array of fun and even comical commands. Try playing around with these yourself when you want a smile.
Extend the life of your Linux SSD drive with fstrim
SSDs have benefits like silent and cooler operation and a faster interface spec, compared to their elder spinning ancestors. Of course, new technology brings with it new methods of maintenance and management. SSDs have a feature to reclaim unused blocks on the device.
NetworkManager on Linux: #3 — How I migrated to NetworkManager Connection Files for configuration
Interface configuration files may not be supported in Fedora much longer, but migrating to NetworkManager is easier than you might think.
An introduction to GRUB2 configuration for your Linux machine
Learn how the GRUB boot loader works to prepare your system and launch your operating system kernel.
NetworkManager on Linux: #2 — A sysadmin’s guide to network interface configuration files
Simplify the complex world of interface configuration files with this handy tutorial.
A Linux networking guide to CIDR notation and configuration
One of the key concepts in network routing that any Linux professional should be familiar with is network notation. CIDR stands for Classless-Inter Domain Routing; it defines a notation methodology for network addressing that is used to specify the network portion of an IP address.
NetworkManager on Linux: #1 — Getting Started
Most current Linux distributions use NetworkManager for creating and managing network connections. Learn what NetworkManager is and how to use it to view network connections and devices for Linux hosts.
An introduction to Linux network routing
Every computer attached to a network requires some type of routing instructions for network TCP/IP packets when they leave the local host. This is usually very straightforward because most network environments are very simple and there are only two options for departing packets.
But that’s not always the case. Learn how to create a router with your Linux computer.
How to use udev
Udev is flexible but complex. Learn how to use udev so you can customize how Linux recognizes your devices.
