Ubuntu

How to check total virtual memory size in Linux Ubuntu? Here are the commands to check virtual memory usage in Linux Ubuntu. Virtual Memory Linux supports virtual memory, that is, using a disk as an extension of RAM so that the effective size of usable memory grows correspondingly. The kernel will write the contents of […]

Here is how to compare 2 files in Linux and print difference or compare files in two directories. If you want to compare two directories in Linux recursively, read this blog. See The Diff Between Two Directories in Linux Meld is a tool for comparing two or more than two files and directories, and for […]

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 […]