Language Selection

English French German Italian Portuguese Spanish

today's howtos

Filed under
HowTos
  • Linux ls Command List and Sort Files by Size

    A directory in a Linux system can hold from a few files to hundreds and thousands of files.

    You may need to sort the files by size, either in ascending or descending order. The reason for sorting files by size may vary. We may want to locate the largest to smallest files or vice versa.

    You can easily sort files using the ls command.

    In this tutorial, we’ll cover the various ways of sorting files by size using the ls command.

    In our examples we’ll sort files in the /var/cache/apt/archives directory.

  • Share files with your client using ProjectSend

    ProjectSend is an open-source self-host file sharing platform for companies, teams and communities.

    It is an ideal solution if you want to share files with your clients. Let's say you are a designer who shares dozens of files with his clients every day, with ProjectSend you can do this effortlessly and without a hassle.

  • Discover your cluster logfiles - A journey into the past. | SUSE Communities

    Log files are very useful when it comes to situations where the root cause of an event has to be investigated. But analyzing logs does not only mean looking for errors in the system. There are also a lot of other informations in most of the log files. The pacemaker log file is a perfect example. Beside warnings and errors it includes also all cluster changes. The trick is to know which keywords you have to search for.

  • Set the order of task execution in Ansible with these two keywords | Enable Sysadmin

    Regular readers of Enable Sysadmin know that most of us are big fans of Ansible. We particularly like using Ansible roles to design reusable code effectively. A playbook follows a specific execution order when it runs, and there are several ways to control the order in which your tasks run. In this article, I'll look at two particularly useful Ansible features, pre_tasks and post_tasks. I'll walk you through some real (and simple) examples of how these features can add additional flexibility to your playbooks by executing tasks at different points during a playbook run.

  • Debug a web page error from the command line | Opensource.com

    Sometimes when managing a website, things can get messed up. You might remove some stale content and replace it with a redirect to other pages. Later, after making other changes, you find some web pages become entirely inaccessible. You might see an error in your browser that "The page isn't redirecting properly" with a suggestion to check your cookies.

  • Try Fusion-360 by installing on Ubuntu 20.04 LTS Linux using Wine

    “Fusion 360” is a CAD / CAM program from Autodesk, which is known for 3D modeling software. Although it is a paid graphic design software, students and schoolchildren can download the professional program for Windows and Mac free of charge. With this professional tool, you can design mechanical components and master a wide variety of tasks in product design. You can render your drafts, create animations, and – thanks to cloud support – helps to work in collaboration.

  • How to install Clone Hero on a Chromebook

    Today we are looking at how to install Clone Hero 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.

    If you have any questions, please contact us via a YouTube comment and we would be happy to assist you!

  • How to list all installed packages on OpenSUSE/SUSE Linux - nixCraft

    So you want to see a list of all packages installed on your SUSE Linux or OpenSUSE Linux system? Try these simple tips for listing all packages.

    We can easily search for packages matching any given search text/words under OpenSUSE or SUSE Enterprise Linux using the zypper command.

  • How To Find OpenSuse / SUSE Linux Version Using CLI - nixCraft

    How do I find out my Suse Linux / OpenSuse Linux / Suse Enterprise Linux server/desktop version using the command line options? What is the command to find out OpenSUSE Linux version?

    This page explains how to find SUSE or OpenSUSE Linux version using the cat command and other commands.

More in Tux Machines

C/C++ Programming/Development

  • How to pass a struct to a function in C

    A structure has been widely used as a user-defined data type in the C language. The purpose of using structures in C is to create a single data type that would be used further to group various data type variables or elements into one type. The structure has been used as a global variable so all the functions can access it easily. This means it can’t be declared in the main method so that we can use it anywhere.

  • C++ String Reverse

    If the string, “vwxyz“, is reproduced in the new order as, “zyxwv“. Then the string has been reversed. Unfortunately, such direct reversibility is not possible in C++. However, there is a classical workaround for reversing a string in C++. Keep reading this article to know-how. A string can be created in two main ways in C++. A string can be created as a constant pointer to a sequence of characters. A string can also be created by instantiating a string object from the string class. This article deals with string objects instantiated from the string class. This means the string library has to be included in order to execute the code samples in this article. A string object is a data structure where the string literal is a list. Each character is of one element in the list. And so, a literal string can be handled like an array of elements. This article explains the classical workaround to reverse a string in C++. This essentially iterates the string literal, backward. Having a summary knowledge of forward iteration enables the reader to understand reverse iteration better. This article deals with string objects instantiated from the string class.

  • C++ String starts with

    There comes a time when the programmer has to know what a string starts with. This knowledge can be used to choose or eliminate items in a list of characters. So, a programmer may want to know if a string starts with a particular character or with a particular sub-string. A programmer can write code that will check the initial characters of a string, one-by-one, and compare that with a prefix sub-string. However, all the strategies involved have already been done by the C++ string library. The C++ string class of the string library has the member function, starts_with(). This does the work for the programmer, but the programmer needs to know how to use the function. And that is why this tutorial is being produced. There are three variants of the string starts_with() member function. Variants of the same function are called overloaded functions. The basic approach for the start_with() member function is to compare a short independent sub-string with the first short segment of the string in question. If they are the same, then the function returns true. If they are different, the function returns false.

  • Function Overloading in C

    Function overloading is a very well-known concept used in object-oriented languages having many functions with the same name and different parameters in a single code. The object-oriented programming languages which support function overloading include Java and C++. As the C compiler doesn’t allow it to be used in the code hence, it isn’t easy to implement function overloading in C. Yet; we can still achieve the same thing with some technique. Let’s start this article with the opening of the shell terminal of Ubuntu 20.04 LTS.

PineTime Smartwatch and Good Code Play Bad Apple

PineTime is the open smartwatch from our friends at Pine64. [TT-392] wanted to prove the hardware can play a full-motion music video, and they are correct, to a point. When you watch the video below, you should notice the monochromatic animation maintaining a healthy framerate, and there lies all the hard work. Without any modifications, video would top out at approximately eight frames per second. To convert an MP4, you need to break it down into images, which will strip out the sound. Next, you load them into the Linux-only video processor, which looks for clusters of pixels that need changing and ignores the static ones. Relevant pixel selection takes some of the load off the data running to the display and boosts the fps since you don’t waste time reminding it that a block of black pixels should stay the way they are. Lastly, the process will compress everything to fit it into the watch’s onboard memory. Even though it is a few minutes of black and white pictures, compiling can take a couple of hours. Read more

today's howtos

  • How to play Dungeon Defenders on Linux

    Dungeon Defenders is a hybrid multiplayer video game developed by Trendy Entertainment. The game was released on Microsoft Windows, Xbox, iOS, Mac OS, Linux, etc. Here’s how to play the game on Linux.

  • How to play Company of Heroes on Linux

    Company of Heroes is a real-time strategy game developed by Relic Entertainment. The game takes place during WWII and was released on Windows, OS X, iOS, Android, and Linux. Here’s how you can play Company of Heroes on your Linux PC.

  • How to Install TeamViewer on Ubuntu Linux

    TeamViewer is a popular cross-platform tool that allows a user to remotely access and control another user’s computer in an easy and secure way. File sharing, remote desktop control and web conferencing between computers are all possible using TeamViewer. TeamViewer is useful for providing remote customer support in organizations, collaborating with colleagues who are far away, and connecting to your own device remotely. This article will walk you through the process of installing TeamViewer on Ubuntu systems.

  • How to Upgrade Ubuntu 21.04 to 21.10 Impish Indri

    Ubuntu has officially released the Ubuntu 21.10 codenamed Impish Indri. This has seen the introduction of GNOME 40 as the default desktop, and sadly GNOME 41 did not make the final cut. The release also introduces Linux Kernel 5.13 among new applications and other back-end performance improvements.

  • How to Extract Tar Bz2 File in Linux - ByteXD

    In this tutorial, we will be showing you how to use tar command to extract tar.bz2 files. Tar stands for tape archive, and it is one of the most used commands that deals with compressed archive files. Bz2 stands for bzip2. It is a specific compression algorithm. The tar command comes pre-installed in most Linux distributions. The tar utility is used to compress and extract files using different algorithms. Tar supports a wide array of compression algorithms such as gzip, bzip2, xz, lzip, etc.

  • How to mount ISO in Kubuntu Linux - Darryl Dias

    Dolphin file manager in Kubuntu (Tested this in Kubuntu 21.04) does not ship with Mount ISO option in the right click menu, but with the help of the dolphin-plugins package we can add this and many other features.

  • Setup OpenWRT on BPi-R2 | Zamir's Board

    It’s pretty easy to get OpenWRT start and running on BPi-R2. However, I realized that I need to extend the root filesystem to the whole disk, which is where the struggling starts.

GNOME Gingerblue 2.0.0 Recording Software supports XSPF 1.0

GNOME Gingerblue 2.0.0 is Free Recording Software for GNOME. In the 2.0.0 release I have added support for XSPF 1.0 from Xiph.org. Read more Also: Free Software Review: Balena Etcher couldn’t be easier for writing ISO images, but do they really need telemetry? – BaronHK's Rants