Linux Genie

Begin typing your search above and press return to search. Press Esc to cancel.

Adnan Shabbir

Author

Ubuntu

How to Remove User on Ubuntu 22.04?

The userdel and the deluser are the most used commands to remove the user. Additionally, users can be removed manually and GUI as well.

Ubuntu

How to Update Ubuntu Using Command Line?

Updating the Ubuntu depends on the purpose. All the methods of updation are demonstrated, including updating all packages and updating the specific package.

Ubuntu

How to Add a User to a Group in Ubuntu 22.04?

The user can be added to a group via the usermod, adduser, useradd, and gpasswd commands. Moreover, edit the “/etc/group” file to add the user manually.

Ubuntu

How to List Installed Packages on Ubuntu 22.04?

The installed packages are listed using the apt, dpkg, snap, or flatpak commands. The selection of these methods depends on the way you installed them.

How to Install SSH on Ubuntu 22.04

The SSH is installed using the command “sudo apt install ssh”. SSH needs to be configured and managed to carry out SSH operations.

Commands

Difference Between the cat and the tee Commands

Linux is well known for its strong command-line support. The command line utilities serve the purposes efficiently and effectively compared to the G..

[Solved]: unzip command not found

The unzip command in Linux is used to extract files and directories from ZIP archives. It is important in Linux as it allows users to easily extract..

How do I Find the Amount of Free Space on My Hard Drive?

In Linux, the hard drive is critical for storing data and system files. The available space on the hard drive is crucial for the proper functioning ..

Scripting

How to Run sh Script From Terminal?

A sh script in Linux refers to a shell script written in the Bourne shell language (sh), one of Unix-like systems’ most commonly used shell scriptin..

Commands

How Do I Diff the Output of Two Commands?

In Linux, comparing the outputs of two commands is crucial for ensuring the accuracy and consistency of data and processes. By comparing outputs, on..

How Do I Detach a Screen Session From a Terminal?

A screen session in Linux refers to a virtual terminal that allows users to run multiple terminal sessions within a single window. It allows creatin..

How to Display Network Traffic in the Terminal?

Network traffic in Linux refers to the data packets transmitted and received over a network interface. It encompasses the flow of information, inclu..

How Do You Restart Apache on Linux?

The Apache HTTP Server, commonly known as Apache, is a widely used open-source web server software in Linux. It plays a crucial role in hosting and ..

Scripting

Exponentiation in JavaScript

JavaScript is an adaptable and widely utilized programming language. It offers developers many features along with powerful mathematical operations…

Scripting

How to Reverse a String in JavaScript?

The process of reversing a string includes switching the order of all the characters/letters of the string so that the first letter becomes the last..

Scripting

How to Read User Input Into a Variable in Bash?

To write Bash scripts, understanding how to read user input into a variable is crucial. This involves receiving data from the user and storing it fo..

Scripting

How to Extract Part of a String Using Bash_cut_split?

When programming, extracting specific parts of a string from a larger text is common. One popular method for this is using bash/cut/split commands i..

How to Update Google Chrome on Ubuntu 22.04?

Google Chrome is a popular web browser developed by Google. It offers a user-friendly interface, fast browsing speeds, and a wide range of features ..

How to Increase Swap Space in Linux?

Swap space, a swap partition or file, is a dedicated area on a computer’s hard drive or SSD used as virtual memory by the operating system, particul..

[Solved]: “No bootable medium found” in VirtualBox

VirtualBox is open-source virtualization software that enables users to create and run virtual machines, facilitating software testing, system admin..

[Solved] “pip command not found”

PIP is an essential tool for managing Python packages on Linux systems. It allows users to easily install, upgrade, and manage Python packages and t..

[Solved]: “wget command not found”

The wget is a command-line tool used for downloading files from the internet. The name “wget” stands for “web get.” It is available on most Unix-bas..

Commands

pkill Command in Linux | Explained

The pkill command in Linux is useful for terminating processes based on their name or other attributes. When executed, pkill sends a signal to the s..

[Solved]: “zsh command not found”

Zsh (Z Shell) is a powerful shell and command-line interpreter for Unix-like operating systems. It is an alternative to the more commonly used Bash ..

[Solved] “Error message “sudo: unable to resolve host (none)””

In Linux systems, the hostname is the label or identifier assigned to the system. It is used to identify the system within a network or to distingui..

Commands

ps -ef Command in Linux | Explained

In Linux, ps -ef is a command that displays information about running processes on the system. The ps command stands for “process status,” and the -..

Scripting

What is the Slice Method in JavaScript?

The slice() is a built-in method in JavaScript utilized for extracting a section of an array or a string and returns/outputs a new one. By default, ..

how-tos

How to Fix “user is not in the sudoers file. ” Error on Linux?

Being a Linux user, you must be well aware of the keyword “sudo,” which allows the users to execute the root user’s commands. Have you added a new u..

how-tos

How to Execute sudo Commands Without Passwords?

Have you ever thought the sudo command could run without the password? If not, it is time to learn how it can be done.

The “sudo” keyword has a n..

how-tos

How to Fix “sudo: command not found” Error on Linux?

In Linux and other Unix-based operating systems, “sudo” stands for “Superuser Do,” and it is a command that allows users to execute commands with th..

How to Change Hostname in Ubuntu 22.04

The hostname is changed using the hostnamectl, hostname, and nmtui commands. Moreover, the files “/etc/hostname” and “/etc/machine-info” can also be used.

[Solved] “The following packages have been kept back:”

Are you facing the error, “The following packages have been kept back”? Well, that’s frustrating. However, you do not need to worry. We are here wit..

Where is the Crontab Logs and Verify if Crontab Works?

Cron and crontab are essential tools used in Unix-based systems for scheduling tasks such as running scripts, executing commands, and performing sys..

[Solved] “system has not been booted with systemd as init system”

In Linux, init is an initialization system on various Linux distributions initiated with the system startup. Various init systems, such as systemd, ..

How to Uninstall a Package Installed From Snapcraft

Snapcraft is a popular package management system that allows users to install software packages on Linux distributions conveniently and efficiently…

[Solved] SSH Permission Denied Publickey

SSH (Secure Shell) is a network protocol allowing secure communication. With this protocol, the server relates to the client to perform several oper..

How to Clear the Terminal Screen in Ubuntu?

In Ubuntu, the terminal is a command-line interface that allows users to interact with the operating system through a text-based interface. It provi..

how-tos

How to Kill a Screen Session in Linux?

In Linux, a screen session is a way to run multiple terminal sessions within a single shell window. It allows you to detach from a terminal session ..

how-tos

How to Find a File by Name Using Command Line?

Linux is well known for its command-line operations to perform various tasks, ranging from basic file management to complex-level network administra..

How to Merge Several PDF Files on Ubuntu?

Merging PDF files is essential for combining multiple documents into one PDF file. Ubuntu offers various tools to merge several files. In Ubuntu, me..

how-tos

How to Unzip .tgz File Using the Terminal?

If you are using open-source packages, then sooner or later, you will encounter the .tgz or .tar.gz files. This is a variation of zipped files; most..

How to Uninstall MySQL From Ubuntu?

MYSQL is one of the most popular and widely used databases on the web today, used on all platforms, including Ubuntu and other Linux distributions. ..

how-tos

How to Run the SSH Server on a Port Other Than 22?

SSH server is a network-based communication protocol that enables two systems to communicate in an encrypted form over an unsecured network. In defa..

How Can I Record My Screen on Ubuntu?

Want to capture something on the Ubuntu screen? That’s crazy. Ubuntu has the option to serve you with this feature.
Screen recording or capturing i..

How Do I Search for Available Packages From Command-Line in Linux?

how-tos