Ubuntu

Learn how to zip a folder in Linux using command; creating zip folder in Linux using zip command. Also learn to zip folder in Linux with password. If zip command line tool is not installed on your system, open the terminal and write the following command to install the zip and unzip command line tools: […]

In this tutorial we will see how to use clear command history in Linux terminal to delete command history without trace. We can clear history in Linux terminal permanently, read more to find out how: How To Clear Command History In Linux There are three ways to clear command history in Linux Ubuntu: Let us […]

If you are looking for ways to check user activity log in Linux, you can use the who command to see the list of users who are currently logged in Linux Ubuntu. How To Check User Activity Log In Linux There are various commands to get the list of users who are currently logged in […]

How to compare two directories in Linux recursively and compare files in two directories. This tutorial explains how to compare two directories for missing files and differences in Linux. Compare two directories for missing files in Linux The ‘comm’ command is used to compare two sorted files line by line. The ‘comm’ writes to standard […]

How to fix username is not in the sudoers file, this incident will be reported in Ubuntu. How to add user to sudoers file which is not in sudoers file. Reason for the error “Username is not in the sudoers file This error is reported in Ubuntu when: 1. Fixing Sudo Error Using /etc/sudoers Open […]

How to clear terminal screen in Linux command line. Learn how to use clear command in Linux with examples to clear Terminal Ubuntu. Linux Command To Clear Terminal Screen To clear terminal screen in Linux Ubuntu, the simplest command is “clear” to clear terminal screen: clear The clear command doesn’t need any option with itself. […]