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Introduction Symbolic links, also known as symlinks, are a fundamental part of Linux file system, and they allow users to create shortcuts to files or directories. A symbolic link is a file that points to another file or directory, and it allows users to access a file or directory without having to use its full path. However, sometimes a symbolic link can become broken or outdated, which can cause issues for system or user. In this article, we will explain how to find and identify broken symlinks in Linux, and provide some examples of how to fix them. What is ... Read More
As a Linux user, it's essential to understand concept of stream redirections. Stream redirections allow us to manipulate and control input and output streams of Linux commands. It means that we can control where standard input, output, and error streams are going to and coming from. In this article, we'll guide you through basics of stream redirections and show you how to use them with examples. Introduction to Stream Redirections In Linux, there are three types of streams − Standard Input (stdin) − This is input stream that allows us to send data into a command. Standard Output (stdout) ... Read More
Linux is an operating system, it become popular for its open-source nature, flexibility, and reliability. Including its many features, Linux also provides powerful tools for managing files and data, including ability to concatenate files. The concatenation is process of joining two or more files together, creating single file that contains contents of all original files. In this article, we will explore different methods of concatenating files in Linux, including examples and subheadings. Concatenating Files Using cat Command The cat command is a powerful tool for managing text files in Linux. It can be used to create new files, view ... Read More
When working with files and directories in Linux, it’s important to understand how to set permissions. Permissions define who can access and modify files and directories on a system. In this article, we will go through how to use chown and chmod commands to set permissions on files and directories. Understanding Linux File Permissions In Linux, each file and directory has three types of permissions: read, write, and execute. These permissions can be set for three different categories of users − owner of file or directory, group to which file or directory belongs, and all other users. The read permission ... Read More
Introduction Linux is powerful operating system it provides a variety of command-line tools to managing files or directories. One of most useful tool is find command, it allows users to search any files and directories based on a wide range of search criteria. In this article, you will get a comprehensive guide to using find command, including a variety of examples that demonstrate its capabilities. Basic Usage The basic syntax of find command is as follows − find [path] [expression] The path argument specifies starting directory for search, and expression argument specifies criteria for search. Here are ... Read More
Introduction Postfix is open-source mail transfer agent (MTA) it allows users to send and receive email on Linux system. It is efficient and easy-to-use solution, it can configured to work with various email providers, including Gmail. In this article, we will show you steps to configure Postfix using Gmail SMTP on Ubuntu. This process involve setting up Gmail account to allow any apps to access it, installing and configuring Postfix, testing setup to ensure it works. Before dive into details, let's take why you might want to use Gmail SMTP with Postfix. Why Use Gmail SMTP with Postfix? Using ... Read More
In Google Chrome, when you open any page, it instantly connects to the internet and fetches you the latest version of the page from the server and then it displays on your screen, be it mobile or desktop. In case if there is a problem with the internet connection, then you will notice an image of a dinosaur and a message stating that it is unable to connect to the internet.The world at large, anybody would agree Google chrome is the best web browser available to users. It is second to none and no browser can compete to its level. ... Read More
RJ-11 is the most popular telephone line connector. It has two rows of two pins, totaling four pins. With this setup, a single connection can be used to connect two distinct telephone lines. RJ14 and RJ11 are extremely similar, but RJ14 includes an extra two pins for data transmission. RJ11 can support only two wires, but RJ14 can support four wires. This means that you must use an RJ-14 connector if you need to connect more than two telephone lines. The fact that RJ14 is a little bit bigger than RJ11 means that it might not fit in all locations ... Read More
Electrical conductors can be classified as either ohmic or non-ohmic based on how they respond to resistance. Because ohmic conductors have a constant resistance over a wide range of applied voltages, the voltage placed across them directly affects how much current overflows through them. The resistance of non- Ohmic conductors varies with the applied voltage, and the current flowing through them isn't commensurable to the voltage. Read this article to find out more about Ohmic and Non-Ohmic Conductors and how they are different from each other. What are Ohmic Conductors? Ohmic conductors are useful in electrical circuits and systems that ... Read More
Both Navy and Air Force are national defense systems. Their main motto is to protect the nation from other forces. There are many defense systems like the Army, Air Force, Navy, Marines, and Coast Guard. The President of India serves as Supreme Commander of the Indian Air Force, Indian Navy, and Indian Army. These two forces have unique missions, duties, and capabilities. The Navy is mostly in charge of naval operations, which include the safeguarding or protection of the nation’s coastlines and major waterways as well as the transport of military personnel and supplies. The Air Force is mostly in ... Read More