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today's howtos

Submitted by Roy Schestowitz on Tuesday 16th of February 2021 06:17:45 AM Filed under
HowTos
  • How to Search in Vim – Linux Hint

    Vim is a widely used, light-weight, free, multi-platform text and code editor. It is very popular among developers because of its efficiency and ease of use. Though Vim is a simple text editor, it still needs some time to learn for advanced usage.

    Learning the basics of Vim is very handy, therefore in this guide, we are going to focus on Vim editor’s search feature. Searching for some specific text (word/string) is one of the very common tasks when working with large files.

    Let’s understand the search feature of Vim from basic searching to advance search techniques. Make sure you are in command mode before searching for something.

  • How to Install Ruby 3 on Ubuntu 20.04

    Ruby is an open-source, object-oriented, and general-purpose programming language which is one of the most popular programming languages. Ruby programming language is the reason behind the powerful Ruby and Rails framework.

    There are multiple ruby managers available to install Ruby. Ruby managers allow to use multiple versions and help to switch between ruby versions. The most commonly used ruby managers are rbenv and rvm. Ruby is also available in the Ubuntu repository.

    In this article we will be learning three different ways to install Ruby 3 on Ubuntu 20.04.

  • Learn Difference Between $$ and $BASHPID in Bash

    Recently I was working on a shell script and I saw a significant difference in how bash special variable $ and BASHPID behaves. Every process running in Linux will be assigned with a process ID and that is how the operating system handles the process.

    Similarly, your bash terminal session will also be assigned with a process ID. There is a special variable called "$" and "$BASHPID" which stores the process ID of the current shell.

    Go ahead and run the below command to see what is the process ID of your current shell. Both "$" and "$BASHPID" is going to return the same value.

  • How to Install Flatpak, Snap and AppImage Apps in Linux – Linux Hint

    This article will explain how to install, remove and manage Flatpak, Snap and AppImage packages in Linux. These three packaging formats have been in development for the last few years and they provide distribution agnostic packages that can be installed on all major Linux distributions. A detailed comparison between these packaging formats is available here.

  • How To Install Flask on CentOS 8 - idroot

    In this tutorial, we will show you how to install Flask on CentOS 8. For those of you who didn’t know, Flask is an open resource micro web framework for Python. It is known as a microframework since it does now not require specific tools or libraries. Flask supports extensions that may add software features as if they were carried out in Flask itself. Extensions exist for object-relational mappers, form validation, add handling, various open authentication technology, and several normal framework associated tools. Purposes that use the Flask framework incorporate Pinterest and LinkedIn.

    This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step by step install of Flask web framework on CentOS 8.

  • How to check the disk space in Ubuntu 20.04 and 20.10? – Linux Hint

    Monitoring the disk space is a very important activity to perform on any device like mobile, laptop, personal desktop computer, and Linux server. For instance, if you want to install any new application or software on your device, then it is important to know about the disk space. By checking the disk space, you can get to know about the free and used space.
    We can check the disk space from the terminal and graphical user interface based applications.

    The commands discussed in this article are generic and can be used on other Linux distribution like Debian, Linux Mint, etc.

  • ts Command - Add or Convert Timestamps To Output in Linux - Putorius

    At some point in a Linux admins career they need to add timestamps to output. Whether it’s logging for shell script or a simple command (like ping, traceroute, etc…) timestamps can come in handy. There are many ways to accomplish this, but none are as easy as the ts command. In this Linux quick tip we will show you how to easily add timestamps to any output using the ts command.

  • Developing With The Flatpak CLI – Chris's Design & Development

    Flatpak is a very powerful tool for development, and is well-integrated into GNOME Builder. This is what I’d recommend for most developers. But what if you use a plain text editor? Barring Visual Studio Code, there aren’t many extensions for common text editors to use flatpak. This tutorial will go over how to use flatpak to build and test your apps with only the command line.

  • Creating Bash Infinite Loop by Example Scripts – Linux Hint

    An infinite loop in Bash or any other programming language refers to a loop that is continuous i.e., its terminating condition is never met or its executing condition forever stays true. Such loops in any programming language are very simple to write. Whether it is a “for” loop or a “while” loop, it can be made infinite with very slight tweaking in its normal syntax.
    In this article, we will be sharing with you the different ways on how you can conveniently make the “for” and “while” loops infinitely in Bash in Linux Mint 20.

»

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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