Practical Linux tips and tricks – terminal shortcuts, productivity hacks, and configuration tweaks for Ubuntu and other distros.
When you install or update packages on Ubuntu or Debian, you may see an error saying that APT or dpkg could not obtain a lock: output E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 2481 (apt) N: Be aware that removing the lock file is not a solution and may break your…
At this point, you can create sessions, organize them with windows, split windows into panes, navigate between them, resize and zoom panes, search terminal history, and build a complete tmux workspace. So why configure tmux at all? The answer is simple. After using tmux for a while, you’ll start noticing small things you’d like to…
PhoneBuff is a company that built its name by offering lab-tested, standardized reviews for smartphones run by robotic hands. Their YouTube channel showcases a range of assessments that cover speed tests, drop tests, and battery tests. When viewers started poking them about trying Linux after a recent performance comparison they did between a Dell XPS…
The mystery deepens around an x86 implementation from a corporate entity other than AMD and Intel and has been making some very intriguing changes for coming from a seeming start-up. Beyond 16 tile and 32 tile AMX implementations that already surpass Intel’s current Advanced Matrix Extensions (AMX) capabilities in shipping Xeon CPUs, new disclosures were…
KDE developer Nate Graham has proposed Photos, formerly known as Koko, as a potential future replacement for Gwenview, KDE’s long-standing image viewer. For reference, Gwenview has been KDE’s main image viewer for over 25 years and is still a strong, feature-rich app. But Graham says its underlying design now limits improvements in areas like handling…
A few short how-to’s with screenshots, showing easy ways to boot up off a USB live ISO and return back to previous points in time with BTRFS. Many Linux distributions now default to BTRFS as the standard installation filesystem. Fedora Linux is no exception to that. 2022/23 saw a lot of articles extolling its virtues…
Sushi, the spacebar preview utility for Nautilus file manager, has been ported to GTK4 for GNOME 51. For anyone unfamiliar with it, Sushi is like Quick Look on macOS: you highlight a file (image, music, video, document, etc) in Nautilus, press the spacebar and an instant preview of its content appears. Press the spacebar again…
16 Marcus’s DevOps Brief: Installing Docker on Amazon Linux 2027 takes about 2 minutes. I tested this on a fresh t3.micro instance and captured every step. This guide covers installation, configuration, and running your first container. Docker is the de facto standard for containerized workloads, and Amazon Linux 2027 makes installation straightforward. I tested this…
When a service works locally but cannot be reached from another machine, the host firewall is one of the first places to check. Opening the port tells the firewall to accept matching traffic, but it does not start the service or change the address on which it listens. This guide shows how to open a…
We have a new course, Tmux Fundamentals. As evident from the name itself, the course teaches you the fundamentals of Tmux. A terminal multiplexer like Tmux is a lifesaver if you connect to remote servers via SSH. No more session drops because your laptop went in sleep mode or if you forgot to stay connected…
