Please resolve my problems

You can download a youtube video directly from your Ubuntu terminal, this can be done using a application called youtube-dl.
 

youtube-dl can catch a youtube-video by entering the video url,

follow this step to download a youtube video with youtube-dl :


1. you must install youtube-dl

2. type sudo apt-get install youtube-dl in your terminal

3. wait the process to be completed




Hot to use :

using this program is very simple, just copy youtube video url that you want to download,
the url look like this http://www.youtube.com/watch?v=m9MCwkHQuMU

open you terminal and type sudo youtube-dl http://www.youtube.com/watch?v=videourlthatyouwantdownload and press enter.

Wait for a minutes and enjoy it...