This guide explains a few different ways to find which service is listening on a particular port in Linux. Most of you know the default port of popular services or processes. For example, the default...
A while ago, we wrote about ExplainShell, a web-based tool to learn what each part of a Linux command does. It divides the complex and lengthy Linux commands into multiple parts and gives explanation for...
We already have covered how to manually find and delete files older than X days using “find” command in Linux. Today we will do the same, but only if the files have not been accessed...
Image Metadata is a set of information about the images. Metadata is either embedded into the image itself or stored in a separate file. There are three types of Metadata, namely; Technical metadata, Descriptive metadata,...
We already know how to create files of a certain size in Linux. Creating files with the given size can be helpful in many occasions. For example, after deploying a new file server, you might...
As you know already, the Bash history file (~/.bash_history) keeps a record of all the commands you run in the Terminal. We can use the history command to view the list of recently-executed commands in...
The other day a fellow Linux user and I were discussing about Linux commands. He asked me which Linux command I use the most. I told him one of my most frequently used command is...
Some Internet service providers and corporate companies might have blocked most of the ports, and allowed only a few specific ports such as port 80 and 443 to tighten their security. In such cases, we have...
Today, I tried to update the repository lists in my Ubuntu 18.04 LTS desktop and got an error that says – E: The package cache file is corrupted, it has the wrong hash. Here is...
The method of configuring IP address on Ubuntu 18.04 LTS is significantly different than the older methods. Unlike the previous versions, the Ubuntu 18.04 uses Netplan utility. It is a new command line network configuration...
