Installing GIMP on Linux starts with checking which package route your distribution uses. GIMP, short for GNU Image Manipulation Program, is a free image editor for creating and changing raster images. I’ll show you how to identify your distribution, then install GIMP with its package manager or Flatpak. TL;DR: Install GIMP on Linux Install GIMP
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A defunct process in Linux output can leave you wondering which process is responsible for it. A zombie process has finished running, but its parent has not collected its exit status. I’ll show you how to identify the zombie’s parent and what to check before taking action. TL;DR A zombie process has exited, but its
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A backup or batch conversion can share CPU time with work you need to use interactively. The nice command starts a program with a scheduling niceness value, while renice changes that value on a running process. I’ll show how nice adjusts a command at launch and how renice changes and verifies a running process’s niceness.
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Using iTunes on Linux can mean playing music or managing an Apple device. Linux has no native iTunes app, but Wine can try to run the Windows version. I’ll explain how to set up that Wine attempt and how to choose a route for the task you need to do. TL;DR Linux has no native
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A shared file may open for one Linux account but not another. Linux checks account and group identities against the file’s permission bits to decide access. I’ll show how to add a user to a group without replacing existing memberships, then how to check whether that membership grants access to a file. TL;DR: How Linux
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A new Ubuntu setup often calls for a desktop editor for source files. Sublime Text is a cross-platform text editor that you can install and update through Ubuntu’s package manager. You’ll learn to add Sublime HQ’s stable APT source and launch the editor after installation. TL;DR Install the stable Sublime Text package on Ubuntu from
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A Linux server may need to accept SSH connections on a different port from the one it uses now. Changing the SSH port configures the server to listen for SSH connections on a different TCP port. In this piece, I’ll walk through changing the SSH port on Linux and Ubuntu, then verifying that the server
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A network scan starts with a target and a question about what you need to learn from it. Nmap is a command-line tool that sends test messages to a specified host and uses the replies to report host availability and port states. In this piece, I’ll show you how to run a focused scan and
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For an Ubuntu Python project, Flask needs a place to install its packages without changing Ubuntu’s managed Python. Flask helps a Python app handle web requests and includes commands you can run from a terminal. In this piece, I’ll walk you through installing Flask in a project environment and checking it with a small application.
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Before a Ruby program can run on Ubuntu, the system needs Ruby’s interpreter. Ruby is a programming language, and its interpreter runs Ruby programs. I’ll show you how to install Ruby with APT and check whether Ubuntu’s package version fits your project. TL;DR Install Ruby from Ubuntu’s configured repositories with APT, then check the interpreter
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