Explained: Input, Output and Error Redirection in Linux
Redirection is an essential concept in Linux. Learn how to use stdin, stdout, stderr and pipe redirection in Linux command line.
· Abhishek Prakash
How to Upgrade Ubuntu Server to 20.04 from 18.04
This step by step guide shows how to upgrade Ubuntu 18.04 LTS server to 20.04 LTS over an SSH connection or otherwise.
· Abhishek Prakash
Special File Permissions in Linux: SUID, GUID and Sticky Bit
You see an s instead of x in the file permissions? Linux has some special file permissions called SUID, GUID and Sticky Bit. Know more about them.
· Abhishek Prakash
How to Reboot Linux Using Command Line
Here are various ways to reboot a Linux system from the command line.
· Abhishek Prakash
How to Disable SSH Login With Password
One of the basic SSH hardening step is to disable password based SSH login. This reduces the risk of a brute force attack on your Linux server.
· Abhishek Prakash
Checking Spellings in Linux Command Line
Linux command line is versatile. There are commands that can be used to perform spellcheck and find out misspelled words. Here's how!
· Abhishek Prakash
Group Management Commands in Linux
Group is an essential part of Linux system management and security. Check out various commands that you can use for managing groups in Linux.
· Abhishek Prakash
How to Exit a Docker Container
This quick little docker tip shows how to exit a docker container.
· Abhishek Prakash
![How to Remove User From Group in Linux [Quick Tip]](/content/images/size/w30/format/avif/2020/06/remove-user-from-group.jpg)
How to Remove User From Group in Linux [Quick Tip]
Learn how to remove a user from a specific group in Linux command line.
· Abhishek Prakash
groupmod Command Examples
Learn how to modify group properties like group name and group ID with the groupmod command in Linux.
· Abhishek Prakash
groupdel Command Examples
Learn how to delete a group in Linux using groupdel command. Also learn what to do with files owned by the deleted groups.
· Abhishek Prakash
groupadd Command Examples
The groupadd command in Linux creates new groups. Learn how to use groupadd command to add new groups in Linux.
· Abhishek Prakash
Export Command in Linux Explained
The export command in Linux is used for creating environment variables. Understand how it works and how you can use export command for practical usage.
· Abhishek Prakash
How to Disable Swap in Linux
In scenarios like changing the swap size, you should disable the swap first. This quick tutorial shows the steps for disabling swap in Linux.
· Abhishek Prakash
Writing Comments in Bash Scripts: Single Line, Inline and Multi-line Comments
Wondering about comments in bash script? Here's how to add single, inline or multiline comments in Bash scripts.
· Abhishek Prakash
who Command Examples
The who command in Linux lists all logged-in users on the system. Here's how to use it to get various information about logged users.
· Abhishek Prakash
How to Run Docker Containers
In this Docker tutorial, you'll learn various ways of running a container along with the explanation of various options that are used.
· Abhishek Prakash
chown Command Examples
The chown command in Linux enables you to change the user and group ownership of a file or directory. Learn to use chown with some practical examples.
· Abhishek Prakash
How to Remove Docker Containers
Remove a specific container or all belonging to same image or all of them. Learn how to remove docker containers in various situations with these practical examples.
· Abhishek Prakash
usermod Command Examples
The usermod command in Linux allows you to modify a user account in various ways. Check out what settings you can modify in this tutorial.
· Abhishek Prakash
userdel Command Examples
If you want to delete an existing user in Ubuntu or any other Linux distribution, you can use the userdel command in the terminal.
· Abhishek Prakash
useradd Command Examples
The useradd command lets a superuser create a new user account on Linux. Here's how to use the useradd command with various options.
· Abhishek Prakash
How to Run sudo Commands Without Password
Learn how to run some or all sudo commands without entering the password on Ubuntu or any other Linux distribution.
· Abhishek Prakash
stat Command Examples
You can get file permissions, size, mtime, ctime, atime, ownership and several other file attribute information using the stat command in Linux.
· Abhishek Prakash
How to Add SSH Public Key to Server
Public key authentication allows you to access a server via SSH without password. Here are two methods to copy the public ssh key to the server.
· Abhishek Prakash
SIGTERM vs SIGKILL: What's the Difference?
Both SIGTERM and SIGKILL are used for killing a process in Linux. But you should prefer using SIGTERM. Here's why!
· Abhishek Prakash
How to Stop Docker Containers
This docker tutorial discusses methods to stop a single docker container, multiple docker containers or all running docker containers at once. You'll also learn to gracefully stop a docker container.
· Abhishek Prakash
Complete Guide for Removing Docker Images
A complete article that discusses various scenarios of removing docker images with examples.
· Abhishek Prakash
How to Fix Docker Permission Denied Error on Ubuntu
This detailed troubleshooting article helps you fix the permission denied error with Docker on Ubuntu and other Ubuntu-based Linux distributions.
· Abhishek Prakash
Docker Run vs Start vs Create: Difference Explained
For a docker beginner, terms like docker start, docker run and docker create could be confusing. This article explains the difference with examples.
· Abhishek Prakash