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today's howtos

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HowTos
  • Hashing out the hash command on Linux | Network World

    When you type “hash” on a Linux system, you could get one of two very different responses depending on the shell you are using.

    If you are using bash or a related shell such as ksh, you should see a list of the commands that you have used since your terminal session began, sometimes with a count of how many times each command was used. This can be more useful than using the history command if you just want to see your very recent command activity, but the hash command is not a single executable. Instead, it relies on your shell.

  • Learn About Blender and Maybe Get a Free Book – What’s Not to Like?

    The event is Blender 101, an online event from the All Things Open folks, which will feature Jason van Gumster, author of Blender for Dummies, which is popular enough to now be in its fourth edition. Better yet, some copies of the book will be given away “to randomly chosen attendees.”

  • Why must you use ./ to run your Ubuntu scripts? The meaning of Linux's dot slash explained. - Coffee Talk: Java, News, Stories and Opinions

    When you run your own executable command or shell script on Linux, you must prepend ./ to the Unix command. But why?

    Why must you use a dot slash to run commands in Unix? You don’t have to do that in Windows with a batch file.

  • What Is Doas and How to Install It

    Doas is a privilege escalation program similar to sudo. It is designed to be as lightweight and simple as possible. It is the default privilege escalation program for OpenBSD but also available for other UNIX-like operating systems through the OpenDoas program.

  • Shell Aliases Every Linux User Needs - Invidious

    One of the most common questions I get from new-to-Linux users is, "How can I become a power user?" Well, learning the terminal and the terminal commands is the best thing you can do. And big part of becoming more proficient at the command line is creating your own Bash aliases. So today, I'm taking a fresh install of Ubuntu and adding aliases to it's bashrc. These are aliases that I think most, if not all, Ubuntu users would find helpful.

More in Tux Machines

Kernel: TrueNAS, Linux Plumbers Conference, and Linux 5.20

  • SAS2008 LBA, Seagate Ironwolfs and scary log messages « Ville-Pekka Vainio's blog

    I built a home NAS two years ago, that was the first COVID summer and I finally had the time. It’s running Proxmox, which is running TrueNAS (then Core, now Scale) as a VM. An HBA card is passed directly to the TrueNAS VM. The HBA card is a Dell PERC H310, but I’ve crossflashed it so that now it shows up as an LSI SAS2008 PCI-Express Fusion-MPT SAS-2. The system originally had five ST4000VN008 disks (4 TB) in a RAIDZ2. Pretty much from the beginning I noticed the system was spewing out storage related error messages when booting up. ZFS also noticed, but after the TrueNAS VM was completely up, there were no more errors and I quite rarely rebooted or shut down the system, so I wasn’t too worried. The few read errors I got each boot I cleared with zpool clear, which probably was not the best idea. Last summer we had very cheap electricity here in Finland, something like 1-3 c/kWh plus transfer and taxes. Well, this summer it can be even 60 c/kWh during the worst times. I started shutting down my NAS when I knew we would not need it for a while. This made the disk issues worse.

  • Microconferences at Linux Plumbers Conference: System Boot and Security – Linux Plumbers Conference 2022

    Linux Plumbers Conference 2022 is pleased to host the System Boot and Security Microconference In the fourth year in a row, System Boot and Security microconference is are going to bring together people interested in the firmware, bootloaders, system boot, security, etc., and discuss all these topics. This year we would particularly like to focus on better communication and closer cooperation between different Free Software and Open Source projects. In the past we have seen that the lack of cooperation’s between projects very often delays introduction of very interesting and important features with TrenchBoot being very prominent example. The System Boot and Security MC is very important to improve such communication and cooperation, but it is not limited to this kind of problems. We would like to encourage all stakeholders to bring and discuss issues that they encounter in the broad sense of system boot and security.

  • Linux 5.20 Prepped For Intel’s Arc Alchemist Desktop Graphics Cards & Arctic Sound-M Server GPUs

    Intel's development team has done a fantastic job updating each kernel cycle to future-proof all versions. We have seen plenty of Intel DG2, and Arc Alchemist code merged into the i915 Direct Rendering Manager (DRM) driver, including the most recent Linux 5.19 kernel. This particular version of Linux has seen compute user-space ABI support that will be available for the DG2 architecture, as well as several PCI IDs included in DG2 that appear to be utilized for the company's notebook Arc graphics. Lastly, there have also been new features and hardware fixes for various issues since first working on the project.

Ubuntu Studio 22.04 LTS - New Features and Release Details

Ubuntu Studio is the official Ubuntu flavour dedicated to the creators who mainly work with photographs, audio and video. This official distribution brings almost all popular open-source creative software pre-loaded in its ISO image to give you a ready and stable system to kick start your professional work. Read more Also: 10 Necessary Ubuntu Apps For Everyone [Part 3]

Android Leftovers

Fitness and Wellness Tracking With Free Software

  • openWorkout is an An Outstanding Open-source Workout Assistant for Android

    openWorkout is a free open-source android app for athletes or anyone who want to organize their workout and exercise routines. It puts your privacy first, as it does not share any of your private data or even collect them. [...] openWorkout is an open-source project that is licensed under the GNU General Public License v3.0 or later.

  • "Can I Drive": Alcohol Blood Rate Android App for Safe Driving

    Can I Drive is a free open-source Android application allows you to track your recent alcohol consumption, to assess if you can drive or not. The app does not collect, share, or send your data to any third-party, it also does not include any external scripts that may harm the user's privacy. [...] The project is released as an open-source under the Apache 2.0 License.

  • LibreHealth Essential Care For Babies: Free and Open-source

    LibreHealth Essential Care For Babies is a free open-source Android application to provide clinical decision-support for nurses and doctors delivering essential newborn care interventions during the first day of life. [...] The project is released under the Mozilla Public License 2.0.