Introduction Linux is a popular open-source operating system used by millions of users worldwide. One of most common tasks in Linux is to count number of files in a directory. Counting number of files is an essential operation when dealing with large data sets and is also useful when cleaning up system or performing other maintenance tasks. In this article, we will discuss various methods to count number of files in Linux, along with examples. Method 1: Using ls command with option -l The 'ls' command is one of most commonly used commands in Linux to list files in a ... Read More

Introduction ifconfig command is an important tool used in Linux operating system for network administration. It is a command line utility that is used to configure network interfaces and display network interface parameters. In this article, we will discuss ifconfig command in detail, including its syntax, options, and usage. Syntax of ifconfig Command The syntax of ifconfig command is as follows − ifconfig [interface] [options] In above syntax, "interface" parameter specifies network interface for which you want to configure or display information. If you do not specify any interface, command will display information for all available interfaces. The "options" ... Read More

Introduction When working with files in Linux, it is common to come across files that contain blank lines. These blank lines can make it difficult to read file, especially when dealing with large files. In this article, we will discuss different methods to remove blank lines from a file in Linux. Why Remove Blank Lines from a File? There are several reasons why you may want to remove blank lines from a file. First, it makes file easier to read, especially when dealing with large files. Second, it can help reduce file size, which can be beneficial when transferring or ... Read More

Introduction In Linux, chgrp command is a useful tool for changing group ownership of files and directories. It is an important command for system administrators who need to manage user permissions and access control on a Linux system. chgrp command is also useful for collaborative work where users need to share files and directories with specific groups. In this article, we will explore chgrp command and its usage in detail. What is chgrp Command in Linux? The chgrp command is used to change group ownership of files and directories in Linux. chgrp command changes group ownership of a file or ... Read More

Introduction The tee command is a commonly used command in Linux. It is a simple yet powerful command that is used to read standard input, then write it to a file, and also to standard output. tee command takes its name from T-splitter used in plumbing, which splits a stream of water into two streams. The tee command is a part of coreutils package in Linux, and it is pre-installed on almost all Linux distributions. tee command is useful for a wide variety of tasks, such as creating backups, debugging scripts, and monitoring system logs. In this article, we will ... Read More

Linux is a powerful and flexible operating system that is popular among developers and system administrators. One of benefits of Linux is that it allows users to run multiple processes simultaneously, which can increase productivity and efficiency. However, sometimes a background process may become unresponsive or cause system performance issues. In such cases, it becomes necessary to kill process. In this article, we will discuss how to kill a background process in Linux. Understanding Background Processes Before we dive into process of killing a background process, it's essential to understand what background processes are and why they are important. In ... Read More

Introduction In world of networking, ability to check if a networked device is reachable or not is a basic requirement. One of tools that can help us achieve this is ping command. ping command is a tool that sends a signal to a specified networked device, and then waits for a response. ping command is available in almost all operating systems, including Linux. In this article, we will explore Linux ping command in detail, including its syntax, options, and examples. What is ping command in Linux? The ping command in Linux is a utility that helps to test connectivity ... Read More

Random Access Memory (RAM) is an essential component of any computer system. It stores data that processor uses frequently to speed up processing of programs and applications. As number of RAM slots available on a computer determines maximum amount of RAM that can be installed, it is important to know number of RAM slots on a computer system. In this article, we will discuss how to find number of RAM slots in Linux. Why do you need to know number of RAM slots in Linux? How to find number of RAM slots in Linux a. Using dmidecode command b. ... Read More

Introduction When working in Linux, it's common to encounter large files that need to be compressed for storage or transfer. One popular compression tool available in Linux is gzip, which is used to compress files to save disk space and reduce transfer time. In this article, we'll explore how to use gzip and gunzip in Linux, including how to compress and decompress files, and how to work with compressed archives. What is gzip? Gzip is a compression utility tool used in Linux and other Unix-based systems. It's used to compress and decompress files, reducing their size for storage and transfer. ... Read More

Introduction Linux is an open-source operating system that provides users with a wide range of features and functions. One of essential aspects of Linux is use of shared objects (so) files. Shared objects are files that are used by Linux programs to share code and data between different processes. In this article, we will discuss how shared object filenames work in Linux and provide examples to illustrate concepts. What are Shared Objects (so) Files? Shared objects are a type of file that contains code and data that can be shared between multiple processes in Linux. They are similar to dynamic ... Read More