title: Sudo apt-get-repository: command not found
body: <p>I am trying to add a repository in Ubuntu Mate using this command-</p>
  
  <pre><code>sudo apt-get-repository "****************(repository name)"
  </code></pre>
  
  <p>But i am having this output-</p>
  
  <pre><code>sudo: apt-get-repository: command not found
  </code></pre>
  
  <p>I have tried this-</p>
  
  <pre><code>sudo apt-get install software-properties-common python-software-properties
  </code></pre>
  
  <p>and also this-</p>
  
  <pre><code>sudo apt-get install software-properties-common
  </code></pre>
  
  <p>But still getting same <strong>command not found</strong> output.</p>
  
  <p>What is the reason behind this? And also how can i solve this?</p>