Ubuntu

Learning Linux distribution information

The lsb_release command is used to get information about the operating system on Linux. Using this command alone does not mean anything, for this, it is necessary to use the relevant parameters after the command.

lsb_release [parametre]

Let’s see the lsb_release --help the command to see the available parameters:

If we want to see all the information, the lsb_release -a the command is used for this.

Learning kernel knowledge on Linux

It is learned by using the uname (Unix Name) the command to learn kernel information.

What is localhost, what does it do?

Localhost is the computer’s ability to operate as a server thanks to the software installed on the computer. We cannot run PHP files on a normal computer and do not perform operations on the database. Thanks to the installation of the localhost, our computer will gain a server feature and we will be able to run files such as PHP, MySQL.

We can access the localhost by typing http://localhost in our browser or at http://127.0.0.1.

Install youtube-dl to command YouTube videos to the Linux terminal

youtube-dl is a Python-based, small command-line tool that allows you to download videos from YouTube, Dailymotion, Photobucket, Facebook, Yahoo, Metacafe, Depositfiles, and many more.

Main features of youtube-dl

This little tool has so many features that we can call it the best YouTube video download application for Linux.

• Not only from YouTube, Dailymotion, Facebook, etc. Download videos from other popular video sites.
• MP4, WebM, etc. It allows you to download videos in various video formats such as.
• You can also choose the quality of the downloaded video. If the video is available in 4K, 4K, 1080p, 720p etc.
• Automatically pause and resume video downloads.
• YouTube allows bypassing geographical restrictions

How to install Youtube-dl?

If you are using a Ubuntu-based Linux distribution, you can install it using the command below:

See installed programs

To see the programs installed on our Ubuntu operating system. Just use the command below. Thus, we will see the full name of the program we will uninstall and we will not make a wrong mistake when uninstalling.

dpkg --get-selections | grep gns3

Uninstall a program via the command line

You can uninstall the program via the command line using the apt-get command. To do this, we first open the terminal command line. And in the Terminal:

GNS3 is a platform that allows you to create a simulation of a lab environment in a virtual environment without the need to interact directly with network equipment. Thanks to the graphic interface, users can establish a real network structure and make the necessary test studies. GNS3 can run on Windows, Linux, and MAcOSx.

GNS3 software is freeware. It allows you to test the products of many manufacturers. For network devices such as Cisco, Huawei, Mikrotik, etc.