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Open Source Articles
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20 Things to Do After Installing Ubuntu 22.04 LTS (Focal Fossa)
Ubuntu 22.04 LTS (Focal Fossa) is latest long-term support release of Ubuntu, which means that it will be supported for five years with security updates and bug fixes. If you have just installed Ubuntu 22.04 LTS, congratulations! You are now ready to explore world of Ubuntu and take advantage of its many features and tools. In this article, we will discuss 20 things that you can do after installing Ubuntu 22.04 LTS to make most of your new operating system. These include customizing your desktop, installing new software, configuring your system settings, and more. Update Your System The first thing ...
Read MoreWhat is the purpose of VOLUME in Dockerfile?
Introduction Docker is a popular containerization platform that allows users to package and deploy applications in a standardized and isolated environment. Docker uses a file called a Dockerfile to specify the instructions for building and running a Docker container. One important element of a Dockerfile is the VOLUME instruction, which specifies a mount point for a volume in the container. In this article, we will explore the purpose and usage of volumes in a Dockerfile. Definition of volume in Dockerfile In the context of Docker, a volume is a persistent storage location that exists outside of the container. Volumes ...
Read MoreHow to change the file owner and group in Linux?
To change the file owner and group, we use the chown command in the Linux operating system.We know that Linux is a multiuser operating system so every file or directory belongs to an owner and group.To change ownership of files or directories we use chown command in the Linux system. This command is also available in the IBM i operating system. The chgrp command is also used to change only the group ownership of the file in the Linux system.SyntaxThe general syntax of the chown command is as followschown [OPTION]... [OWNER] [: [GROUP]] FILE... chown [OPTION]... --reference=RFILE FILE...A brief description ...
Read MoreEasyTAG: A Tool for Viewing and Editing Tags in Audio and Video Files
EasyTAG comes in handy when editing associated text tags of an image, audio, or video. It is an open-source, cross-platform, feature-rich, and free tool released under the GNU General Public License. EasyTAG tool acts as a backbone for animation, video, audio, application, etc., in which the details of the files, like tags, data, and image information, can be edited. EasyTAG also supports ID3 tags using the tag manipulation library of the MAD project. Originally, EasyTAG was designed to organize the music collection and is available for different platforms, including Windows and macOS. EasyTAG currently has various features, including: ...
Read MoreHow to display the current working directory in the Linux system?
To print the current working directory, we use the pwd command in the Linux system.pwd (print working directory) – The pwd command is used to display the name of the current working directory in the Linux system using the terminal. This is a shell building command that is available in most Unix shells such as Bourne shell, ash, bash, kash, and zsh.SyntaxThe general syntax of the pwd command is as follows −pwd [-LP]A brief description of options available in the pwd command.Sr.No.Option & Description1-L (logical) Display the value of $pwd if it names the current working directory2-P (physical) Display the physical directory, ...
Read MoreHow to rebuild Docker container on file changes?
Docker is a widely used containerization solution that allows programmers to easily package and distribute software in a lightweight and portable manner. The capability of rebuilding a container once modifications are made to its files is one of Docker's key features. This can be very helpful for a number of things, like making sure that code changes are appropriately reflected in a development environment or that code updates are always reflected in a containerized application. In this article, we will go into Docker's crucial feature and examine how it may be used to rebuild a container when files are changed. ...
Read MoreGet the Full Path of a File in Linux
Abstract Every file and folder in Linux has a path that directs the user to it. This path is required for programs and scripts to locate and access files. There are various ways to locate the path to a file or folder if you need to. We can get a full file path with different commands on a Linux machine. In other words, if its arguments were supplied, this command would return the pathnames of the files that would be run in the current context. In this tutorial, we'll show you how to obtain a file's complete path in Linux. ...
Read MoreHow to Check Integrity of File and Directory Using AIDE in Linux?
Introduction Integrity of files and directories is an essential aspect of system security and data protection. File integrity refers to the accuracy and completeness of the information stored in a file, while directory integrity concerns the structure, permissions, ownership, and attributes of directories. When files or directories are tampered with or corrupted, they can cause critical errors, data loss, or even compromise system stability. Therefore, checking file and directory integrity is crucial for ensuring system reliability and preventing security breaches. Installing AIDE on Linux Requirements for Installing AIDE Before installing AIDE, it is important to ensure that the system meets ...
Read MoreHow To Check If File or Directory Exists in Bash?
Introduction As a programmer or system administrator, you may need to check for file or directory existence frequently. Bash, which stands for "Bourne-Again SHell", is a Unix-based command-line interface that provides powerful scripting capabilities. In this article, we will explore how to check if a file or directory exists in Bash. Checking for File Existence In Bash scripting, it is common to check whether a file exists before performing certain operations on it. Fortunately, Bash provides several ways to accomplish this task. Using the "test" Command The "test" command is a built-in Bash command used to check various conditions and ...
Read MoreHow to Check and Patch Meltdown CPU Vulnerability in Linux?
Introduction Released in early 2018, news of a previously unknown hardware vulnerability in Intel's CPUs shocked the IT industry. Dubbed as 'Meltdown, ' this exploit can potentially expose sensitive data on your computer such as passwords, encryption keys, and login credentials to hackers. In worst-case scenarios, it could allow attackers to take complete control of your system without leaving any trace of their activity. Understanding the Meltdown Vulnerability The Meltdown vulnerability is a security flaw that affects modern processors, including those found in most Linux-based systems. The vulnerability takes advantage of a fundamental feature of modern CPUs known as speculative ...
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