title: "source: command not found" running script with git sh via cmder
body: <p>I'm using cmder on windows <a href="https://github.com/bliker/cmder" rel="nofollow">https://github.com/bliker/cmder</a></p>
  
  <p>I created my custom cmder task with the following commands</p>
  
  <pre><code>-new_console:d:C:\project &gt; "C:\Program Files (x86)\Git\bin\sh.exe" --login -i  -cur_console:d:C:\project
  </code></pre>
  
  <p>I need to add another command when this tab opens</p>
  
  <pre><code>source script.sh
  </code></pre>
  
  <p>But when I add it above in the commands I get </p>
  
  <p><code>'source' is not recognized as an internal or external command</code></p>