How to setup passwordless SSH login in Linux?

SSH or Secure Shell is a cryptographic network protocol for securely getting access to a remote computer using a terminal. It provides a secure channel over the unsecured network to execute commands and operate a system remotely. There are various different ways to authenticate users who are going to connect to a remote server using … Read more

How to remove git untracked files?

Git is a version control system used for tracking changes in any set of files. Commonly it is used among programmers to coordinate and manage their codebase. Tracked files are those which are added and committed in git and git is aware of these files. These can have several states such as modified, unmodified, or … Read more

How to parse JSON in Python?

JSON (JavaScript Object Notation) is a lightweight data format used to interchange the data. It is human-readable and can be easily parsed and generated by machines. JSON is a text format that is independent of language. This format of data is most commonly used to transmit and receive data between a web application and a … Read more

How to install GUI on Ubuntu server ?

Ubuntu is one of the most popular Linux distributions. It is easy to use, easy to install and includes everything that anyone needed. Ubuntu officially released in three editions: desktop, server, and core for IoT and robots. Ubuntu server by default doesn’t include a desktop environment that means you have to manage everything from the … Read more

How to list services on Linux?

A service in Linux is a program running in the background some of these are essential for the operating system. These services lack an interface so users cannot interact with them but using a few Linux commands a user can manage them. The services on a Linux or Unix system are also referred to as … Read more

How to grep multiple strings in Linux?

The grep is a command-line utility used to search for a specific pattern in one or more files. It prints all the lines matching with the given pattern on the standard output. Sometimes it becomes more useful when piped with other commands on Linux. In this article, we will discuss how to grep multiple strings … Read more