Tutorials

The Linux Command-Line Cheat Sheet

When coming up to speed as a Linux user, it helps to have a cheat sheet that can help introduce you to some of the more useful commands. In the...
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Exploiting systemd-journald: Part 1

This is part one in a multipart series (read Part 2 here) on exploiting two vulnerabilities in systemd-journald, which were published by Qualys on...
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Getting Started with Git: Terminology 101

Version control is an important tool for anyone looking to track their changes these days. It's especially helpful for programmers, sysadmins, and...
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Introductory Go Programming Tutorial

You've probably heard of Go. Like any new programming language, it took a while to mature and stabilize to the point where it became useful for...
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Linux Fu: Easier File Watching

In an earlier installment of Linux Fu, I mentioned how you can use inotifywait to efficiently watch for file system changes. The comments had a lot...
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Zipping Files on Linux: The Many Variations and How to Use Them

Some of us have been zipping files on Unix and Linux systems for many decades — to save some disk space and package files together for archiving....
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Secure Nginx with Let's Encrypt on Debian 9

Let’s Encrypt is a free and open certificate authority developed by the Internet Security Research Group (ISRG). Certificates issued by Let’s Encrypt...
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Your First Machine Learning Project in Python Step-By-Step

Do you want to do machine learning using Python, but you’re having trouble getting started? In this post, you will complete your first machine...
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Using more to View Text Files at the Linux Command Line

There are a number of utilities that enable you to view text files when you're at the command line. One of them is more. more is similar to another...
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How To Delete a Local and Remote Git Branch

Branches are part of the everyday development process and one of the most powerful features in Git. Once a branch is merged, it serves no purpose...
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