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Operating System Articles
Page 39 of 171
Why Do We Use su – and Not Just su
The Linux operating system is a powerful tool that offers a wide range of features and functionalities to its users. One of the most common tasks performed by system administrators on Linux systems is to switch to the root user account using the su command. However, in some cases, it is recommended to use su - instead of just su. In this article, we will explore the reasons behind using su - and provide examples of how it can be beneficial. What is the Difference Between su and su -? The su command is used to switch to ...
Read MoreHow to End Processes With kill, pkill, and killall
When working with a Unix-based operating system such as Linux or macOS, it is common to encounter situations where a process becomes unresponsive or needs to be terminated for some reason. Fortunately, there are several command-line utilities available that allow users to end processes in a variety of ways. In this article, we will explore three of the most commonly used utilities for terminating processes: kill, pkill, and killall. We will cover their basic usage, common options, and examples of how they can be used to manage processes on a Unix system. Basic Usage of kill, pkill, and killall ...
Read MoreViews of the Operating System
The operating system can be viewed from two distinct perspectives − the user view and the system view. These viewpoints provide different insights into how an operating system functions and serves its purpose. The user view focuses on the interface and experience provided to users, while the system view examines the internal resource management and hardware interaction aspects. Views of the Operating System Operating System Views User View System View Interface & ...
Read MoreFastest Method to Check If Two Files Have Same Contents
In today's era of technological advancements, use of computers and various electronic devices has become an essential part of our daily routine. We often find ourselves in situations where we need to compare two files to check if they contain same content or not. This can be a daunting task, especially if files are large in size, and traditional comparison methods can be quite time-consuming. In this article, we will explore fastest methods to check if two files have same contents. What is a File Comparison? A file comparison is a process of comparing two or more files ...
Read MoreVolatile data Collection from Window System
Volatile data is temporary information stored in a computer's memory that is lost when the system loses power or is switched off. It resides primarily in Random Access Memory (RAM) and cache memory, making it crucial for digital forensics investigations to collect this data quickly before it disappears. Random Access Memory (RAM) is volatile memory used to hold instructions and data of currently running programs. This memory loses integrity immediately after loss of power, making it a critical source of evidence that must be preserved during forensic investigations. Volatile vs Non-Volatile Memory ...
Read MoreWeb Operating System
A Web Operating System (Web OS) is an internet-based user interface that allows users to access applications and data through a web browser rather than installing software locally on their computer. Unlike traditional operating systems, a Web OS does not directly interact with hardware but provides a platform for cloud-based computing and distributed applications. Web Operating System Architecture Web Browser Cloud Servers Internet AJAX JavaScript ...
Read MoreAvoiding unwanted directory while using zip
ZIP files are one of the most widely supported compression formats, especially when sharing files across different operating systems like Linux, Windows, and Mac. However, when creating ZIP archives from the command line, we often encounter the problem of unwanted directory structures that make the extracted files difficult to navigate. This article explores techniques to create clean ZIP archives without unnecessary parent directories, using Linux command-line tools and bash built-in commands like pushd and popd. The Problem with Full Path Compression When using the zip command with the -r (recursive) option, the entire directory path gets included ...
Read MoreHow to Pretty-Print XML From Command Line?
XML is a commonly used format for exchanging data between systems. It is used extensively in web applications and other areas where data needs to be exchanged between different systems. However, XML can be difficult to read and understand when it is in its raw format. Pretty-printing XML is the process of formatting XML in a more readable and understandable way. This article will discuss how to pretty-print XML from the command line. What is Pretty-Printing? Pretty-printing is the process of formatting data in a more human-readable and understandable way. In the case of XML, pretty-printing involves adding ...
Read More20 Things To Do After Installing Ubuntu 22.10 'Groovy Gorilla'
Ubuntu 22.10 'Kinetic Kudu' brings exciting features and improvements to the Linux desktop experience. After installation, there are essential configurations and applications to install that will optimize your system and enhance productivity. This guide covers 20 important steps to get the most out of your fresh Ubuntu installation. 1. Install System Updates The first priority is updating your system to ensure you have the latest security patches, bug fixes, and feature improvements. Open the Software Updater application or use the terminal − sudo apt update && sudo apt upgrade 2. Install Additional Hardware Drivers ...
Read More20 Useful IPtable Firewall Rules Every Linux Administrator Should Know
As a Linux administrator, one of the most important aspects of maintaining a secure and stable network is implementing an effective firewall. IPtables is a powerful firewall tool that comes pre-installed on most Linux distributions. In this article, we will explore 20 useful IPtables firewall rules that every Linux administrator should know. These rules will help you secure your network and prevent unauthorized access, while also allowing legitimate traffic to pass through. Block All Incoming Traffic Except SSH The first rule is to block all incoming traffic except for SSH. SSH is a secure way to access your ...
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