Author: Rahul

A Python list is an ordered and changeable collection of data objects. Unlike an array, which can contain objects of a single type, a list can contain a mixture of different types. A list in Python is used to store the sequence of various types of data. A list can be defined as a collection of values or items of different types. Python has a great built-in list type named “list”. List literals are written within square brackets “[]”. Let’s initialize a Python list with the following arguments:

By default, when you print a list in Python, it is…

Google Chrome is a popular web browser that is widely used for browsing the internet, streaming videos, and running web-based applications. If you want to install Google Chrome on Pop!_OS, you can follow a few simple steps to download and install the browser. In this article, we will walk through the process of installing Google Chrome on Pop!_OS, including downloading the installation package, installing dependencies, making the package executable, and using the “dpkg” command to install the package. Steps to Install Google Chrome on Pop!_OS Download the Google Chrome package: Go to the Google Chrome website (https://www.google.com/chrome/) and click on…

Rsync is a powerful command-line utility for Unix/Linux systems, that allows you to synchronize and transfer files between different two systems. One of the key features of Rsync is the ability to exclude files and directories from the synchronization process. This feature can be incredibly useful for a variety of tasks, such as backups, codebase synchronization, and data management. In this article, we’ll get a basic understating of excluding files and directories with Rsync command line utility. Also includes a few useful examples using this feature. Exclude files and directories with rsync The most basic method for excluding files and…

Rsync is a command-line utility that is used to synchronize files and directories between two locations. It is commonly used to copy files from one location to another while preserving file attributes such as permissions, timestamps, and ownership. One of the powerful features of rsync is the ability to copy only the files that are missing or have been modified in the destination location. This can be useful when you want to keep a backup of your files, or when you want to update a website or server with the latest changes. Copy Missing Files with Rsync To copy only…

The `lsusb` command is a utility in Linux that allows users to list the USB (Universal Serial Bus) devices connected to the system. This utility is the part of “usbutils” package, which provides utilities to display information about USB buses in the system and the devices connected to them. A USB (Universal Serial Bus) is a widely used standard for connecting devices to computers. It allows users to connect a many of devices such as keyboards, mice, printers, and external storage devices to their computers with ease. The `lsusb` command can be used to display information about these devices, including…

The SSL connection error: error:0A000086:SSL routines::certificate verify failed error is usually encountered when establishing an SSL connection to a MySQL server. I was configuring the replication between two MySQL servers running with MySQL version 8.0. After configuring the replication, the “SHOW SLAVE STATUS” command on the slave instance shows me the following error: Last_IO_Error: error connecting to master ‘[email protected]:3306’ – retry-time: 60 retries: 3 message: SSL connection error: error:0A000086:SSL routines::certificate verify failed Then I tried to connect the Master server from the slave using the command line, with the client certificate. Again I received the following error with the connection:…

Shared hosting is a type of web hosting service where multiple websites are hosted on the same server. Each website is allocated a certain amount of resources, such as storage space and bandwidth, which it can use to host its content and serve its visitors. It is a popular and cost-effective option for small businesses that want to launch a website. With shared hosting, your business’ website will be hosted on the same server as other websites, which helps to lower costs. Pros & Cons of Shared Hosting There are several pros to using shared hosting: It is cost-effective: Shared…

Pop!_OS is a popular operating system based on Ubuntu, and like most operating systems, it comes with a default version of Python installed. However, you may want to install a newer version of Python or multiple versions of Python on your system for different purposes. Python is a popular programming language that is widely used in many fields, including data science, web development, and scientific computing. Pop!_OS is a popular operating system based on Ubuntu, and like most operating systems, it comes with a default version of Python installed. However, you may want to install a newer version of Python…

The Linux shell is a command-line interface that allows users to interact with the operating system and execute commands. There are several different types of Linux shells available, each with its own set of features and characteristics. In this article, we will introduce the 10 most popular open-source Linux shells, which are widely used by developers, system administrators, and other users around the world. 1. Bash Shell Bash, or the Bourne Again Shell, is the default shell on most Linux and Unix-like operating systems. It is a widely-used, powerful, and flexible shell that is suitable for a wide range of…

Git is a distributed version control system that is widely used for tracking changes in source code during software development. It allows developers to collaborate on projects and keep track of their changes without the need for a central repository. Sometimes, it may be necessary to change the URL of a remote repository in a local Git repository. This can happen if the remote repository has been moved to a new location, if you want to use a different remote repository for your local project or if you want to change authentication methods like HTTPS to Git or vice versa.…