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How to Restrict Users to FTP Access Only on Linux
There are situations when you want to allow a user to access a system solely through FTP, while blocking all other forms of access like SSH or shell logins. This…
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How to Check if a Package Is Installed on Debian, RedHat And Derivative Systems
Verifying whether a package is installed on your Linux system is a fundamental step, especially when debugging issues or managing configurations. The process varies depending on the package manager used…
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How to Give Passwordless Root Privileges to a Normal User
Granting passwordless root privileges can streamline workflows, especially when managing multiple automated processes or scripts that require administrative access. If you're already familiar with changing a user's default shell, the…
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How to Change a User’s Default Shell in Linux
Managing user environments is an essential part of Linux system administration. One powerful way to personalize or restrict user sessions is by changing the default login shell. In this article,…
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The Ultimate Guide for Creating and Removing Directories
Working with directories is a fundamental part of navigating and organizing your Linux system. Whether you're setting up project structures or managing application files, knowing how to create and remove…
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ViM Trick: Split Screen in the Vim Text Editor
Navigating and editing multiple files efficiently in the terminal is a skill that can significantly enhance productivity. Vim, a highly configurable text editor, includes powerful features such as split screens…
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Open Files and Directories from the Terminal with Ease
Opening files or directories directly from the terminal can significantly improve your workflow and efficiency. While command-line operations are typically associated with advanced tasks, there are tools that allow you…
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Understanding the $SHELL Environment Variable in Unix and Linux
In Unix and Linux systems, the $SHELL environment variable indicates the parent shell that initiated your current session. This can be useful for understanding the runtime environment, particularly when troubleshooting…
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Understanding the Linux yes Command and When to Use It
The yes command in Linux is often underrated, but it can be quite useful when combined with other tools in a pipeline. It automatically outputs a string repeatedly—by default, "y"—and…
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Count How Many Times a String Appears in a File with a One-Liner
When working with text files, it's extremely helpful to know how to quickly count how many times a specific string appears. This technique can come in handy during log analysis,…