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Programming Leftovers

Submitted by Roy Schestowitz on Sunday 16th of January 2022 05:06:50 PM Filed under
Development
  • Osmo PIM 0.2.14 compiled in OpenEmbedded

    Very good news about Osmo. "PIM" means Personal Information Manager, and Osmo has been in the pups for a very long time. However, it is somewhat neglected and not as well integrated as could be.

    The way this latest work with Osmo came about, is I have an elderly relative who has a mobile phone with prepaid account with a telco. I pay it, every 4 weeks. Don't want to do a direct-debit with a bank, so renewal requires me to remember when to pay... and I forget.

    Besides, renewal is peculiar. I have to pay $15 for the renewal, then separately have to pay $5 international-calls addon. That second payment requires a manual online choice. I cannot see how to automate this with direct-debit or bpay. The telco is Optus.

  • Josef Strzibny: Configuring Rails system tests for headless and headfull browsers

    Want to run your system tests headless? And why not both ways? Here’s how to extend Rails tasks to run your system tests with the driver of your choice.

  • 3 Best Free and Open Source JavaScript Engines - LinuxLinks

    JavaScript is an interpreted programming language. It means that source code isn’t compiled into binary code prior to execution. The role of the JavaScript engine is to turn plain text script into executable code. In other words, the engine is a container in which you run your program.

    JavaScript engines are often developed by web browser vendors, and every major browser has one. In a browser, the JavaScript engine runs in concert with the rendering engine via the Document Object Model. JavaScript engines implement specification of the language provide by ECMAScript. Standardization enables the development of independent engines and ensures scripts give the same results no matter wherever they run.

    The first JavaScript engines were mere interpreters, but all relevant modern engines use just-in-time compilation for improved performance.

    The use of JavaScript engines is not limited to browsers. For example, the V8 engine is a core component of the Node.js and Deno runtime systems.

    Engines which use runtime interpreters and do not compile into native machine code are excluded from this roundup.

    Here’s our verdict captured in a legendary ratings chart. We feature free and open source software only here.

  • Kasm Workspaces - Stream Docker Containers Easily & Quickly

    Kasm Workspaces is an intriguing platform for security and development aficionados. It is accessible by web browser and allows users to deploy container apps, including full-fledged Ubuntu desktops.

    In our daily lives, we must deal with a wide range of challenges that arise in our workplace. As an independent developer, I am concerned with designing secure code, optimizing application speed, and hunting and fixing bugs. But what if, when searching for something on the Internet, I accidentally click on a site that steals my session or downloads ransomware or malware? That is beyond frustrating. Isn’t that right?
    Every day, I’m sure firms of various sizes have the same difficulty. What if one of their employees accidentally downloads malware in the workplace? Kasm Workspaces, on the other hand, attempts to solve the same problem to a large extent.

  • Fooled by complexity | Playing Perl...

    And that fool would be me. After realising that HyperSeq is lazy, I managed to simplify the code in my last post.

    [...]

    The sub needle transforms it’s argument or returns Nil. By turning Nil into Empty, any call to .head will skip all values that where not a hit. At least for strongly CPU-bound tasks, which allow for small batch sizes, .hyper doesn’t overshoot much.

  • GStreamer Rust bindings 0.18.0 release

    A new version of the GStreamer Rust bindings, 0.18.0, was released. Together with the bindings, also a new version of the GStreamer Rust plugins was released.

    As usual this release follows the latest gtk-rs release and the corresponding API changes.

    This release includes optional support for the latest new GStreamer 1.20 APIs. As GStreamer 1.20 was not released yet, these new APIs might still change. The minimum supported version of the bindings is still GStreamer 1.8 and the targetted GStreamer API version can be selected by applications via feature flags.

»

More in Tux Machines

Linux 5.18-rc7

	
From	Linus Torvalds 
Date	Sun, 15 May 2022 18:15:42 -0700
Subject	Linux 5.18-rc7
share 0
So things continue to be fairly calm, and as such this is likely the
last rc before 5.18 unless something bad happens next week.

All the stats here look normal, with the bulk of it being random
driver updates (network drivers, gpu, usb, etc).

There's a few filesystem fixes, some core networking, and some code
kernel stuff. And some selftest updates.

Sortlog appended, nothing really stands out (the most exciting thing
last week was literally that Andrew has started using git, which will
make my life easier, but that doesn't affect the *code*)

Please give it one last week of testing, so that we'll have a nice
solid 5.18 release.

                 Linus
Read more

today's howtos

  1. Finding files in Ubuntu 22.04

    In computing, file placement is an important activity to perform as you may forget the file location. Ubuntu 22.04 supports various built-in commands to trace down your files. However, the graphical user interface may also be used to find files.

  2. How to Convert SVG or PDF File to Base64?

    Apart from simple text, the image files or documents can also be converted to the Base64 format. These entities can then be stored securely anywhere you want. In this article, we would like to share the methods of converting the SVG files and PDF files to Base64 using the Python programming language in Ubuntu 20.04. First, we will introduce you briefly to these file formats, followed by the procedure of converting them to Base64.

  3. How to install DataGrip 2022 on a Chromebook

    Today we are looking at how to install DataGrip 2022 on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

  4. GDISK Command-Line Options

    The GDISK command in Linux is used to partition the drives of your system. Moreover, it can also be used to list down the existing partitions and display relevant information about them. In this guide, we will be talking about the different command-line options that are available with the GDISK command on a Linux Mint 20.3 system.

  5. Mapfile Bash Linux Command

    The bash shell Mapfile command is often known as a reading array. The primary purpose is to read standard input lines and store them in an indexed array variable. Mapfile must also read from substitution (<<) rather than a pipe. In addition, as compared to a read loop, bash Mapfile is a much faster and more convenient solution. It returns 1 if the execution of the command gets successful and 0 in case it is not successful. If we don’t specify an array name, the bash Mapfile variable will be targeting the array variable by default. Thus, we have decided to cover some examples using the mapfile instruction on the bash.

  6. Resolve Issue: Bash Bad Substitution

    You may have received the Bad substitution syntax problem while developing Bash scripts. After browsing through forums, you may discover that you are not alone; other individuals are encountering the same mistake. It’s a typographical fault that happens when you run your Shell script, and it can happen for a variety of reasons. The wrong use of instruction substitution and erroneous characters appended to the program are two major reasons for this. Let’s see how we can make our shell script cause this error and how to resolve it. Get started with the new bash file created with Ubuntu’s “touch” query and open it within the “GNU Nano” editor.

  7. Resolve Issue: Bash Unary Operator Expected

    Errors have a diverse number of types and reasons when it comes to bash programming. One of those errors is the “unary operator expected” error in bash programming. When evaluating expressions in conditional declarations, you may run into the “unary operator expected” issue. The reasons for this error “bash unary operator expected” might be diverse. We’ll start by talking about what’s creating the problem. Following that, we’ll go over a couple of options for resolving this problem. Let’s get started with today’s article by creating a new bash file in Ubuntu 20.04 system. For this, we need to utilize the “touch” instruction within the shell terminal and name the file “unary.sh”.

today's leftovers

  • Linux Weekly Roundup #182

    Welcome to this week's Linux weekly roundup. We had another full week in the world of Linux releases with Fedora 36, Bluestar Linux 5.17.7, ALT Linux 10.0, and LXLE Focal beta. I hope you have a wonderful week and enjoy every moment!

  • libiconv - News: libiconv 1.17 released [Savannah]

    GNU libiconv 1.17 is released.

  • PS4 9.60 and PS5 5.10 Firmware updates released, do not update if possible - Wololo.net

    So as always, we (and several prominent members of the hacking scene) recommend you do not update your console, if you can, and if you’re expecting to Jailbreak it eventually.

  • Best PlayStation 2 (PS2) Emulators for Android in 2022

    The Google Play Store is packed with interesting games, but most of them pale in comparison with the best PlayStation 2 titles, such as Silent Hill 2, Ico, Shadow of the Colossus, the Ratchet and Clank series, Final Fantasy X, Kingdom Hearts 1 & 2, Wild Arms, or Persona 4, just to give some examples. These and many other games are still fun to play, even though it’s been more than two decades since Sony released the PlayStation 2 console to great success. You can play them even if you don’t own the console or any of its successors’ thanks to PlayStation 2 emulators for Android.

  • Best Roblox Anime Games

    Roblox is a unique gaming platform with a library that has millions of games created by a community of millions of developers, allowing endless hours of gameplay. If you are a fan of anime and looking for games that resemble them then we have mentioned some of the top anime games in this article.

  • Did you know Twitter has an open-source arm? This is what it's been up to [Ed: Openwashing of a truly sinister and manipulative entity]
  • KlipperScreen: All You Need to Know [Ed: Not about KDE per se. This could be a trademark problem because of KDE. Klipper started in the 1990s.]

    KlipperScreen is a program that runs on Klipper firmware and provides a GUI to control your printer. Read on to learn more about it!

OpenVMS 9.2 hits production status for x86-64

VMS Software Inc. has announced the release of OpenVMS 9.2, the first production-supported release for commercial off-the-shelf x86 hardware. The expectation is that customers will deploy the new OS [PDF] into VMs. Most recent hypervisors are supported, including VMware (Workstation 15+, Fusion 11+ and ESXi 6.7+), KVM (tested on CentOS 7.9, openSUSE Leap 15.3, and Ubuntu 18.04), and Oracle VirtualBox 6.1. Read more

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