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youtube-dl is a small command-line program to download videos from YouTube.com and a few more sites. It requires the Python interpreter, version 2.6, 2.7, or 3.3+, and it is not platform specific. It should work on your Unix box, on Windows or on Mac OS X. It is released to the public domain, which means you can modify it, redistribute it or use it however you like.
To install software packages from internet in Linux the repository will be updated. In Linux operating system repository will help the OS to find YUM Server in internet and the packages. By default the repository file will be in /etc/yum.repos.d.
i – Insert. After you type i, you can input text that start to the right of the cursor.
a – Add. After you type a, you can input text that start to the right of the cursor.