Find Installed Repositories From Commandline In Linux

use this command to find the installed repositories in your DEB based system like Debian, Ubuntu, Linux Mint etc.

sudo grep -Erh ^deb /etc/apt/sources.list*

Run the following command to view the list of installed packages in DEB based systems

sudo apt-cache policy

Install YouTube-DL on Linux (a tool to download videos from dailymotion, youtube etc)

We can easily install YouTube-DL on all the Linux distribution such as Debian, RHEL, Ubuntu, LinuxMint, CentOS, Fedora, suse, openSUSE, ArchLinux, Manjaro, Mageia, etc..,. by using below method.

[Download through curl]
# curl https://yt-dl.org/latest/youtube-dl -o /usr/local/bin/youtube-dl

or

[Download through wget]
# wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl

[Set Executable permission]
# chmod a+rx /usr/local/bin/youtube-dl

[Upgrade to latest version]
# youtube-dl -U

How to use youtube-dl to download videos

[Syntax]
# youtube-dl [Video URL]

[example]
# youtube-dl https://www.youtube.com/watch?v=SjiwQxbol7I


[Sample video downloading from YouTube]
# youtube-dl https://www.youtube.com/watch?v=SjiwQxbol7I
[youtube] SjiwQxbol7I: Downloading webpage
[youtube] SjiwQxbol7I: Extracting video information
[download] Destination: Linux _ Unix - Find Out DNS IP Addresss Settings Tutorial-SjiwQxbol7I.f136.mp4
[download] 100% of 16.10MiB in 00:13
[download] Destination: Linux _ Unix - Find Out DNS IP Addresss Settings Tutorial-SjiwQxbol7I.f140.m4a
[download] 100% of 2.55MiB in 00:02
[ffmpeg] Merging formats into "Linux _ Unix - Find Out DNS IP Addresss Settings Tutorial-SjiwQxbol7I.mp4"
Deleting original file Linux _ Unix - Find Out DNS IP Addresss Settings Tutorial-SjiwQxbol7I.f136.mp4 (pass -k to keep)
Deleting original file Linux _ Unix - Find Out DNS IP Addresss Settings Tutorial-SjiwQxbol7I.f140.m4a (pass -k to keep)