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Operating System Articles
Page 16 of 171
Linux who Command with Examples
The Linux who command is a fundamental system utility that displays information about users currently logged into the system. It shows login names, terminal devices, login times, and remote host information. This command is essential for system administrators to monitor active user sessions and track system access. Basic Usage The simplest form of the who command displays all currently logged-in users: who user1 pts/0 2021-12-20 10:01 (192.168.1.100) user2 pts/1 2021-12-20 10:03 (192.168.1.101) admin ...
Read MoreLinux zcat Command with Examples
The zcat command in Linux is a tool for displaying the contents of compressed files in the gzip format. It functions like the cat command but is specifically designed for working with compressed files. The command reads compressed files and outputs their uncompressed content to standard output without modifying the original compressed file. Syntax zcat [options] file.gz [file2.gz ...] Basic Usage To view the contents of a compressed file, use the following command − zcat example.txt.gz This displays the uncompressed contents of example.txt.gz directly in the terminal without extracting the ...
Read MoreLossless Real-Time Data Compression with Zstandard (zstd)
Zstandard (zstd) is a high-performance, lossless data compression algorithm developed by Yann Collet. It provides excellent compression ratios while maintaining fast compression and decompression speeds, making it ideal for real-time data processing. Zstd is open-source and supports various data types including text, images, audio, and video files across multiple platforms including Linux, Windows, macOS, and FreeBSD. The algorithm uses advanced techniques like entropy coding and dictionary compression to achieve superior performance compared to traditional compression methods. Its adaptive nature allows it to optimize compression based on data patterns, making it particularly effective for repetitive data structures. Key Features ...
Read MoreMOSINT – OSINT Tool for Emails in Kali Linux
MOSINT is an advanced Open Source Intelligence (OSINT) tool specifically designed for email investigations within the Kali Linux environment. This powerful Python-based tool enables security professionals and ethical hackers to extract valuable insights from email addresses through passive reconnaissance, information gathering, and breach detection. MOSINT leverages the robust foundation of Kali Linux's pre-installed security tools to facilitate comprehensive email intelligence gathering operations. The tool's simplicity and versatility make it an essential component for conducting effective email investigations and enhancing security measures. Installing and Configuring MOSINT MOSINT harnesses the power of Kali Linux, a renowned operating system specifically ...
Read MoreMTR – A Network Diagnostic Tool for Linux
MTR (My Traceroute) is a powerful network diagnostic tool that combines the functionality of traceroute and ping commands. It provides real-time network path analysis by sending packets to a target host and measuring round-trip times, packet loss, and latency at each hop along the route. Unlike traditional traceroute tools that provide a one-time snapshot, MTR continuously monitors the network path, displaying live statistics in an interactive format. This makes it invaluable for diagnosing network performance issues, identifying bottlenecks, and troubleshooting connectivity problems in Linux environments. How MTR Works MTR sends a series of packets with incrementing TTL ...
Read MoreNewsboat – RSS/Atom Feed Reader for Linux Terminals
If you are a Linux user who likes to keep up with the latest news and articles from your favorite websites and blogs, Newsboat is an excellent RSS/Atom feed reader designed for terminal environments. Newsboat is free, open-source, and offers a highly customizable experience, making it an ideal choice for Linux users who value flexibility and efficiency in their workflow. This article provides a complete guide on how to install and use Newsboat, including adding and managing feeds, navigating articles, and using keyboard shortcuts to optimize your productivity. Whether you are a beginner or an expert Linux user, this ...
Read MoreNewsroom – Linux Client to Get Your Favorite News
In today's world, staying informed about the latest news is essential for our daily lives. However, the sheer volume of news available can be overwhelming, making it difficult to keep up. Fortunately, there are several news readers available that can help us navigate the vast amount of information out there. In this article, we'll explore everything about Newsroom, a lightweight and open-source newsreader specifically designed for Linux users. We'll delve into the installation process and the necessary requirements for setting up Newsroom, and provide examples to guide you through the entire setup. Whether you want to stay informed or ...
Read MoreopenSquat – Domain Squatting and Phishing Watchdog
openSquat is a powerful cybersecurity tool designed to detect domain squatting and phishing attempts. Built in Python, it monitors suspicious domain registrations that could target your brand or organization. Domain squatting involves registering domains similar to legitimate ones to deceive users or profit from brand confusion. openSquat leverages Python modules such as whois, requests, tldextract, and BeautifulSoup to analyze domain information, detect malicious patterns, and provide real-time monitoring capabilities for cybersecurity professionals. Features Domain Monitoring − Continuously tracks specific domains for suspicious changes Squatting Detection − Identifies domains that mimic legitimate brands or trademarks Phishing Analysis ...
Read MorePacVim – A CLI Game to Learn Vim Commands
PacVim is an innovative CLI game that transforms learning Vim commands into an engaging Pac-Man-style experience. Instead of memorizing commands through traditional methods, players navigate through mazes while collecting pellets that represent different Vim operations, making the learning process both fun and effective. Vim has been a favorite of many programmers and Linux users for years due to its powerful features and flexibility. However, Vim's learning curve has often been a barrier for newcomers. PacVim addresses this challenge by gamifying the learning process, allowing users of all skill levels to master Vim commands through interactive gameplay. How PacVim ...
Read MorePractical Examples of Linux xargs Command
The Linux xargs command is a powerful utility that reads items from standard input and executes commands using those items as arguments. It's particularly useful for automating tasks and processing large numbers of files efficiently. This command helps bridge the gap between commands that produce output and commands that need arguments. The xargs command is especially valuable when working with long lists of items or data, as it simplifies the process of executing commands on multiple items. With xargs, you can perform operations like copy, delete, compress, rename, and count on numerous files with a single command line. ...
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