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Operating System Articles
Page 17 of 171
Shell Scripting – How to Send Signal to a Process?
In this tutorial, we will explore how to send signals to processes using shell scripting. Signals are software interrupts that enable communication between processes, allowing the operating system and applications to notify processes about events or request specific actions. Understanding signal handling is essential for effective process management in Unix-like systems. Signals serve various purposes including graceful process termination, handling interrupts, suspending processes, and modifying process behavior. Shell scripts can leverage these signals to control running processes programmatically, making system administration and automation more efficient. Understanding Signals and Their Usage Signals are software interrupts sent to processes ...
Read MoreShow System Statistics from /proc Filesystem Using procinfo
The procinfo command is a powerful Linux utility that reads system statistics from the /proc filesystem and displays them in a user-friendly format. It provides quick access to essential system metrics like CPU usage, memory consumption, and process information, making it an invaluable tool for system administrators and users monitoring system performance. The /proc filesystem is a virtual filesystem that provides real-time information about running processes and system resources. The procinfo command parses this data and presents it in an organized, readable format. Installation Install procinfo using your distribution's package manager − Ubuntu/Debian sudo ...
Read MoreTheSpeedX / TBomb – Call and SMS Bomber for Kali Linux
TBomb is a penetration testing tool developed by TheSpeedX for educational and authorized security testing purposes. This tool demonstrates potential vulnerabilities in communication systems by simulating bulk messaging and calling scenarios. Important: This tool should only be used on systems you own or have explicit permission to test, as unauthorized use may violate laws and terms of service. Installation Process To install TBomb on your Kali Linux system, follow these steps − Open a terminal in your Kali Linux environment. Clone the TBomb repository from GitHub − git clone https://github.com/TheSpeedX/TBomb.git ...
Read MoreTips to Manage Docker Containers Using CLI
Docker has revolutionized how we create, ship, and deploy applications through lightweight containerization. While Docker provides a graphical interface, the command-line interface (CLI) remains the most powerful tool for efficiently managing containers. This article covers essential CLI tips for Docker container management with practical examples. Installing Docker CLI Before managing Docker containers, ensure Docker CLI is installed on your system. Docker CLI is available for Windows, macOS, and Linux. Visit the official Docker website to download and install the appropriate version for your operating system. Basic Container Operations Starting and Stopping Containers Start a container ...
Read MoreTop Command Line Tools to Find Files Quickly in Linux
In Linux, there are several command line tools that can be used to quickly and easily find files on the file system. These tools are powerful and versatile, allowing users to search for files based on a variety of criteria such as name, type, size, and more. Some of the most popular command line tools for finding files in Linux include find, locate, grep, whereis, which, fd, and ack. These tools are widely used by system administrators, developers, and power users to find and locate files in a quick and efficient way. Find Command The find command is ...
Read MoreUseful and Time-Saving Bash Commands in Linux
Linux, an open-source operating system, is widely recognized for its robustness, security, and flexibility. While it offers a variety of graphical user interfaces, Linux's command-line interface, powered by the Bash shell, remains a favorite among power users and system administrators. Mastering Bash commands can significantly enhance your productivity and efficiency in a Linux environment. From simplifying complex tasks to automating repetitive operations, understanding and utilizing useful and time-saving Bash commands can unlock a world of possibilities. This article explores essential Bash commands that will empower you to navigate directories, manipulate files, process text, manage processes, and handle packages more ...
Read MoreWhat Does the rm -rf Command Do in Linux?
The rm -rf command is one of the most powerful and potentially dangerous commands in the Linux operating system. It enables the recursive deletion of files and directories without any confirmation prompts. While this command is extremely useful for batch processing and system maintenance, it requires careful handling due to its ability to cause permanent data loss. Understanding the rm Command The basic rm command removes files instantly but cannot delete directories without additional options. Let's examine its basic usage: $ mkdir demo $ touch example.txt $ rm example.txt $ rm demo rm: cannot remove 'demo': ...
Read MoreShell Script to Validate the Date, Considering Leap Year Rules
In this tutorial, we will explore how to create a shell script that validates dates, taking into account the rules of leap years. We will be using the Linux operating system and the Bash shell scripting language for this purpose. Shell scripting allows us to automate tasks and perform complex operations by writing simple and efficient scripts. We will develop a shell script that prompts the user to enter a date in the format YYYY-MM-DD and then validates whether the entered date is valid or not, considering leap year rules. We will break down the problem into smaller steps ...
Read MoreDifference between Kali Linux and Parrot OS
An operating system (OS) is a group of programs that controls computer hardware resources and offers standard services to software applications. It serves as a conduit between the user and the hardware. Kali Linux and Parrot OS are both Debian-based Linux distributions specifically designed for cybersecurity professionals, penetration testing, and digital forensics. What is Kali Linux? A Debian-based Linux distribution called Kali Linux is made specifically for penetration testing and digital forensics. It is supported and maintained by information security training provider Offensive Security. Mati Aharoni and Devon Kearns of Offensive Security rewrote BackTrack to create Kali Linux. ...
Read Morehttp://Section.io Released - Setup Complete Varnish Cache Solution for Your Websites in Minutes
Section.io is a cloud-based platform that provides a complete Varnish cache solution for websites, enabling rapid deployment in minutes. This service allows website owners to implement Varnish Cache, a powerful open-source HTTP accelerator, without the complexity of traditional setup processes. By leveraging Section.io's infrastructure, websites can significantly reduce server response times, improve scalability, and enhance overall user experience through efficient content caching. How Section.io Works Section.io acts as a reverse proxy layer between your website visitors and your origin server. When users request content, Section.io's Varnish cache serves cached content when available, reducing load on your origin server ...
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