How-To Geek

Dave McKay-Freelance Journalist

Dave McKay

Freelance Journalist

Contributing since March, 2019

  • 417
    articles
  • 416
    Features
  • 1
    Guides

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About Dave McKay

Dave McKay first used computers when punched paper tape was in vogue, and he has been programming ever since. After over 30 years in the IT industry, he is now a full-time technology journalist. During his career, he has worked as a freelance programmer, manager of an international software development team, an IT services project manager, and, most recently, as a Data Protection Officer. Dave is a Linux evangelist and open source advocate. Expect detailed how-to's, distribution reviews, and Linux-centric editorials.

Latest Articles

A Linux Terminal
Linux & macOS Terminal
How to List Environment Variables on Linux

Inspect your environment.

LibreOffice text file on Linux.
Linux & macOS Terminal
How to Compare Two Text Files in the Linux Terminal

Quickly find the differences between two text files in Linux and macOS.

The Ubuntu 23.10 Mantic Minotaur GNOME desktop
Ubuntu
What's New in Ubuntu 23.10 "Mantic Minotaur"

We're bullish about the possibility of upgrading to this interim release.

A Linux terminal.
Linux & macOS Terminal
How to Use the scp Command on Linux

Fast and simple, just like it should be.

Linux Terminal open on Ubuntu.
Linux & macOS Terminal
How to Use Linux's screen Command

Ever wanted to run a terminal command in the background, and then pull it up later? You need the Linux screen command!

The Terminal open on Linux.
Telegram
How to Install the Telegram Chat Client on Linux

Chat with privacy on your desktop as well as your phone.

A Terminal window open on Linux.
Linux & macOS Terminal
How to Use the awk Command on Linux

If you need to manipulate text in Linux, the awk command is at your service.

Downloading a ZIP file.
Linux & macOS Terminal
apt vs. apt-get: What's the Difference on Linux?

Should you use apt or apt-get on Linux?

A Linux Terminal on Ubuntu.
Linux & macOS Terminal
What Is Reverse SSH Tunneling? (and How to Use It)

For those unreachable Linux systems.

The System Monitor showing the drives on a Linux PC.
Linux & macOS Terminal
How to Extract Files From a .tar.bz2 or .tar.gz File on Linux

Here's everything you need to know about untarring a file on Linux

The Terminal open on Linux.
Linux & macOS Terminal
How to Discover the Screen Resolution in Linux Scripts

Get a clearer picture of the display your script is working with.
Cloud & Internet
Static IP vs. Dynamic IP: What Is the Difference?

Which is right for you, static IP or dynamic IP?

A computer running Ubuntu
Linux & macOS Terminal
How to Use the chroot Command on Linux

Go directly to jail and do not pass root. chroot makes it simple to set up ring-fenced environments In Linux.

Downloading a ZIP file on Linux
Linux & macOS Terminal
How to Zip or Unzip Files From the Linux Terminal

You may not find these programs on server distros by default, though.

Terminal on Linux PC.
Linux & macOS Terminal
How to Exit the Vi or Vim Editor

We'll show you how to make a graceful exit, rather than just unplugging your PC.

The syntax for the ECHO command on Linux
Linux & macOS Terminal
How to Add a Directory to Your $PATH in Linux

Do not add everything to your PATH. Seriously.

The Ubuntu lock screen, show immediately after startup.
Linux & macOS Terminal
How to Run a Linux Program at Startup with systemd

It beats launching everything manually every time your PC restarts.

A Linux Terminal.
Linux & macOS Terminal
How to Use the xargs Command on Linux

xargs lets you use data from one Linux command as parameters in another.

A GeForce GPU in a PC.
Linux & macOS Terminal
How to Check Which GPU Is Installed on Linux

If you're troubleshooting a Linux computer and need to identify the graphics card, you've come to the right place!

The Terminal open on Ubuntu.
Linux & macOS Terminal
How to Use netstat on Linux

Netstat might be a little old, but it gets the job done.

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