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Linux Operating System

Raspberry Pi 400 PC in a Keyboard Raspberry Pi 400 takes the same components as Raspberry Pi 4, including the system-on-chip and memory and puts them in a compact keyboard.

What is Bash?
A shell is a terminal application used to interface with an operating system using written commands. Bash is a shell for and has been ported to Windows. Bash an acronym for Bourne Again Shell because it is an enhanced version of the Bourne shell distributed with Linux. Bash is released under the GNU General Public License (GPL). More ...

Dual-Boot Windows and Ubuntu
with your dual-boot Windows and Ubuntu configuration you can see what Ubuntu can do when installed to your hard disk running at full speed, and you can still run Windows when you need to use legacy applications that don't come in a Linux version. More ...

12 Essential Linux Commands for Beginners
I recommend these commands to anyone who is getting started with Linux. More ...

Linux Server Hardening
For today's computing platforms, ease of access and openness is essential for web based communications. This is at odds with the increased necessity for comprehensive security measures in a world full of malware and hacking threats. More ...

How to Load or Unload a Linux kernel Module
Linux manages hardware peripherals using kernel modules. Fix problem peripherals by finding and loading kernel modules. Here is how to load or unload a Linux kernel module. More ...

Levels and Layers of Abstraction in a Linux System
We can use abstraction to split computing systems into components to make things easier to understand, but it doesn't work without organization. We arrange components into layers or levels. A layer or level is a classification (or grouping) of a component according to where that component sits between the user and the hardware. More ...

Fedora 3 Linux File Management
Installing Fedora is as simple as inserting the first CD-ROM into the drive and rebooting. The thing first you need to know when moving to a new operating system is how to manage files. More ...

Linux System Calls and Support
There are several kinds of kernel features available to user processes. For example, system calls (or syscalls) perform specific tasks that a user process alone cannot do well or at all. For example, the acts of opening, reading, and writing files. More ...

Basic Linux File and Directory Commands
This article explains the basic Linux file and directory commands used in their simple forms. How to determine you location in the directory hierarchy, create a directory, delete a directory, create a new file, move a file, copy a file, delete a file, and more. More ...

Understanding Linux Filesystems: Ext4 and Beyond
Learn the history of ext4, including what's different from ext3 and the other filesystems that came before it. More ...

What is Ubuntu?
Ubuntu is a completely free, easy-to-use, and popular Linux distribution that is geared toward the desktop user and is designed to be user friendly. More ...

What is a Linux Distribution
An operating system consists of a lot of files and the files that make up Linux along with an installer for the files are called a distribution. More ...

What You Need to Know to Set Up a Simple Firewall in Linux
Like any other OS, Linux needs to be protected with a firewall. Essentially, a firewall is a protective fence that keeps unwanted external data and software out and sensitive internal data and software in. More ...

You Can Switch to Linux!
Books have been written with solutions for all the potential pitfalls the Linux-switcher faces. Instead of just telling you what to do, I?m going to tell you how to do things and explain why you're doing them. I'm going to focus on the things that are truly a challenge (and poorly documented), but still give you a head start on the easy stuff. More ...


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