Play a fun math game with Linux commands
Use these commands to generate random numbers for a fun math quiz game.
Using ‘awk’ to filter text
Here’s how to use awk to strip out sample code from a Markdown file.
Use ‘grep’ to solve a 2-dimensional word puzzle
Regular expressions match patterns and help you solve problems.
Using ‘grep’ to play a word game
You can use regular expressions to match letters and patterns, to help you play a letter game.
Writing your own ‘fmt’ program
Learn a little programming to write tools that do things the way you want to do them.
How to use udev
Udev is flexible but complex. Learn how to use udev so you can customize how Linux recognizes your devices.
How to debug a web server error with ‘wget’
The wget command line tool can provide detailed information about what’s happening on a web server.
The real differences between less, more, and most
Find out what sets these famous Linux pagers apart from one another, and how to choose the right one for your system.
Using ‘if’ in a Bash script
Writing a short Bash script can save typing lots of instructions at the command line.
Check disk usage in Linux
Using these tools can show how much of your disk is being used no matter how much storage you have.
Working with data streams on the Linux command line
Learn to connect data streams from one utility to another using STDIO. Everything in Linux revolves around streams of data—particularly text streams. Data streams are...
Getting the most out of your NVME drives
My laptops are equipped with NVMe drives, which impress me with their incredible speed. I'm delighted by the lightning-fast boot times and seamless data read...