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Articles by Satish Kumar
Page 27 of 94
Ifconfig Command in Linux
The ifconfig command is an essential network administration tool in Linux systems used to configure network interfaces and display network interface parameters. It allows system administrators to view current network configuration, assign IP addresses, enable/disable interfaces, and modify various network settings from the command line. Syntax The basic syntax of the ifconfig command is − ifconfig [interface] [options] Where interface specifies the network interface name (e.g., eth0, wlan0), and options define the actions to perform. If no interface is specified, ifconfig displays information for all available interfaces. Common Options Interface Control ...
Read MoreHow to Count Number of Files in Linux
Linux provides several powerful methods to count the number of files in a directory. This is an essential skill for system administrators, developers, and Linux users who need to manage large datasets, perform system maintenance, or analyze directory contents. Understanding these techniques helps you efficiently handle file management tasks from the command line. Method 1: Using ls Command with grep and wc The ls command combined with grep and wc provides a reliable way to count regular files while excluding directories and special files. ls -l | grep "^-" | wc -l This command ...
Read More10 Linux Commands to Collect System and Hardware Information
Linux provides numerous built-in commands to gather detailed system and hardware information, essential for troubleshooting, performance monitoring, and system administration. These commands allow administrators and users to inspect everything from basic system details to comprehensive hardware specifications without requiring external tools. Basic System Information Commands uname - System Information The uname command displays fundamental system information including kernel version, architecture, and operating system details. $ uname -a Linux hostname 5.4.0-74-generic #83-Ubuntu SMP Sat May 8 02:35:39 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux uptime - System Runtime Shows how long ...
Read MoreLinux man Command
The man command in Linux is an essential tool for anyone working with the command line interface. It stands for "manual" and provides a built-in help system that offers detailed documentation about commands, system calls, library functions, and more. This comprehensive reference tool is crucial for understanding Linux command syntax, options, and usage. How the man Command Works The man command displays manual pages (often called "man pages") stored on your system. To use it, simply type man followed by the name of the command or topic you want to learn about. man ls man grep ...
Read More10 Linux Distributions and Their Targeted Users
Linux is a versatile, open-source operating system with numerous distributions (distros) designed to meet specific user needs. Each distribution offers unique features, package management systems, and target audiences. Understanding which Linux distribution aligns with your requirements helps optimize your computing experience for desktop use, development, security, or enterprise applications. Ubuntu Ubuntu is one of the most popular Linux distributions, known for its user-friendly approach and comprehensive ecosystem. Its target users include − Desktop Users − Provides an intuitive interface with regular updates, making it ideal for users transitioning from Windows or macOS. Developers − Offers extensive ...
Read MoreELF executable file many zero bytes
The ELF (Executable and Linkable Format) is a binary file format used in Unix-based operating systems such as Linux, FreeBSD, and Solaris. ELF files contain executable code, data, and metadata needed to launch programs and shared libraries. Sometimes, ELF executables contain numerous zero bytes, which can impact file size and performance. ELF File Structure An ELF file consists of a header followed by various sections containing executable code, initialized data, uninitialized data, and other information. The header contains critical metadata such as the program entry point and the location and size of each section. ...
Read MoreHow to investigate which process causes wakeups during laptop sleep-mode in MacOS (or Linux)
When a laptop goes into sleep mode, the operating system tries to conserve power by stopping most processes and putting the computer in a low-power state. However, sometimes a process may continue to run or periodically wake up the computer, preventing it from entering a deep sleep state. This can lead to increased power consumption and shorter battery life. In this article, we'll explore how to investigate which process is causing wakeups during laptop sleep-mode in MacOS or Linux. Understanding Power Management Subsystem Before diving into how to investigate sleep mode wakeups, it's important to understand the power ...
Read MoreCMake configure fails to find Qt5 on Linux
CMake is an open-source cross-platform tool used for building, testing and packaging software. It is widely used in industry for its portability and ability to generate build scripts for various build systems such as make, ninja, etc. Qt5 is a cross-platform application development framework that is widely used in creating GUI applications. In this article, we will discuss a common issue that developers face while configuring a CMake project on Linux: CMake configure fails to find Qt5. Understanding the Issue When we configure a CMake project with Qt5, CMake needs to find the Qt5 package, which includes required ...
Read MoreHow to Access Remote Desktop from Browser Using TightVNC
Remote Desktop is a handy tool that allows you to access your computer from a different location, using another device. It is very useful, especially for remote workers, who need to access their work computer from home or any other location. The most common way to access a remote desktop is through a client software installed on the device, but there is an easier way to access it: using a browser. In this article, we will show you how to access remote desktop from a browser using TightVNC. What is TightVNC? TightVNC is a free remote control software ...
Read MoreHow to Enable NGINX Status Page?
NGINX is a high-performance web server that requires monitoring for optimal performance. The NGINX Status Page is a built-in module that provides real-time metrics about server activity, including active connections, request counts, and server uptime. This feature helps system administrators monitor performance, identify bottlenecks, and troubleshoot issues efficiently. Understanding NGINX Status Page The NGINX status page displays real-time performance data through the stub_status module. This lightweight monitoring tool provides essential metrics without significantly impacting server performance. Key Metrics Displayed The status page shows several important metrics − Active Connections − Current number of client ...
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