Preparing to install Ubuntu starts with putting its installer on a USB drive. Creating a bootable USB from Ubuntu Terminal writes the ISO image’s boot data and filesystem layout to the drive. This article walks through verifying the ISO checksum and identifying the USB device before writing the image with dd. TL;DR Prepare a verified
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Command output can fill a terminal, making its opening harder to inspect. The Linux head command prints the initial part of that output or a file. This article explains how to set line and byte counts, then combine head with tail to select a line range. TL;DR: Preview the beginning of a file Without a
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A local application needs a place to store its data. MySQL Server is a database service that stores structured data and answers SQL requests, and the mysql client connects to it. I’ll show you how to install the distribution package with APT and check whether the service is active. TL;DR: Install MySQL with APT On
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Copying a file from a terminal means choosing a source path and a destination, which can have a different name. The cp command copies files and, with a recursive option, copies directories and their contents. In this piece, I’ll walk through copying files and directories with cp, then explain how to choose an overwrite option.
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Project work often means keeping track of changes to files as they develop. Git records those changes in a repository, and Ubuntu’s APT package manager installs Git from configured software sources. I’ll walk you through installing Git on Ubuntu and preparing a project repository. TL;DR Install Git from Ubuntu’s APT repositories, check that the command
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When you set up a web server on Ubuntu, a browser check can tell you whether Apache is responding. Apache is software that listens for web requests and serves content. I’ll show you how to install Apache with apt, Ubuntu’s tool for installing software, and check its default page in a browser. TL;DR Install Apache
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-y used to display differences in files side by side -s Report when two compared files are identical -r If a directory is specified, this option will compare any subdirectories found. -i Since Linux is case sensitive, this option will ignore all case sensitive differences. -B Ignore blank lines and don’t show them as differences
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Every command you type in a Linux terminal is read by a program called the shell, and Linux has more than one shell to choose from. The shell interprets what you type and starts programs, while the terminal window only displays the session. You’ll see how the Linux shells differ, from sh to zsh, and
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Debian and Ubuntu install a Python for you, but it can be older than the latest stable release on Python.org. Building Python from its source code lets you install a newer version beside it, without replacing the one your system tools use. Below, I’ll install the build tools and compile Python 3.14.8 into a folder
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Seeing what’s in a folder is one of the first things you’ll do in a Linux terminal. The ls command lists a folder’s contents, and its options can show hidden files or add details like size and modification time. Below are the ls options that change which entries appear and how they’re sorted. What is
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