Regex Cheatsheet: Essentials You Must Know
Regex (Regular Expressions) is like a super-powered search function with pattern recognition. Think of it as…
-
-
Module 6: Network management with systemd-networkd
Configure networks using systemd-networkd. Set static IPs, DHCP, bridges, and more—ideal for minimal or headless Linux…
-
Ansible Yum Module: Manage Red Hat Packages
Modern infrastructure operations depend on automation not only for efficiency, but also for repeatability. Among the…
-
LHB Linux Digest #25.18: Journalctl Logs, Restore Containers, Bash Test, Better Diff and More
The AWK series continues with two more chapters. I have changed my initial plan to completely…
-
Chapter 5: Manipulating Strings in AWK
AWK isn’t just a text processor – it’s your personal calculator and string manipulation wizard rolled…
-
Chapter 5: Manipulating Strings in AWK
AWK isn’t just a text processor – it’s your personal calculator and string manipulation wizard rolled…
-
Chapter 4: Mathematical Operations in AWK
AWK handles numbers like a built-in calculator. I would say like a scientific calculator, as it…
-
LHB Linux Digest #25.17: AWK Series, at command, Docker Copy, Pangolin and More
I told you about the AWK tutorial series in the previous newsletter. Well, it has an…
-
Chapter 3: Built-in Variables and Field Manipulation
You already saw a few built-in variables in the first chapter. Let’s have a look at…
-
Chapter 2: Pattern Matching and Basic Operations
Think of AWK patterns like a security guard at a nightclub – they decide which lines…
-
Chapter 1: Introduction to AWK
If you’re a Linux system administrator, you’ve probably encountered situations where you need to extract specific…
-
LHB Linux Digest #25.16: AWK, History, YAML Validation, Mastering Top and More
Is it too ‘AWKward’ to use AWK in the age of AI? I don’t think so….
-
LHB Linux Digest #25.15: New Docker eBook, Declare in Bash, Debug Ansible Playbook and More
We have converted our text-based Docker course into an eBook; Learn Docker Quickly. It is available…
-
Using Bash Declare: Gateway For Effective Variable Management
Ever wondered how to make your bash scripts more robust and professional? The declare command in…
-
Linux Handbook
Paste your YAML content or upload a file to validate syntax. Scroll down to see the…
-
Why Homelab When You have Cloud Services Like AWS, Vercel, Hetzner?
I see a lot of posts on my Twitter (or X) feed debating the merits of…
-
LHB Linux Digest #25.10: Peersuite, YAML Essentials, Splitting Screen in Vim and More
Linux doesn’t get easier. You just get better at it. This is what I always suggest…
-
Using Split Windows With Vim
Have you ever watched a bearded sysadmin navigate their editor with lightning speed, jumping between multiple…
-
LHB Linux Digest #25.09: Vim Tips, TCP Proxy, Vagrant Triggers and More
In the previous edition, I asked your opinion on the frequency of the newsletters. Out of…
-
Set Up a Basic TCP Proxy with socat
A TCP proxy is a simple but powerful tool that sits between a client and a…
-
Send Slack Notifications from Shell Scripts
Automating tasks is great, but what’s even better is knowing when they’re done or if they’ve…
-
LHB Linux Digest #25.08: Docker Logging, TaskCrafter, Comparing Dirs and More Tips
In the past few months, some readers have requested to increase the frequency of the newsletter…
-
I Created a Better Alternative to the Classic CD Command
Anyone who works in a terminal, Linux or Windows, all the time knows that one of…
-
Resize Panes in Tmux
In this series of managing the tmux utility, the first level division, panes, are considered. Panes…
