How do I start Atom editor on dev mode?
<p>I want to Modify <code>ex-mode</code> package   </p>

<p>I tried below commands, but <code>atom -d .</code> does not work.<br>
This command does not open atom window.<br>
How can I open atom with dev mode? </p>

<p>Commands:</p>

<pre><code>export ATOM_REPOS_HOME=~/github/atom
apm dev ex-mode
cd ~/github/atom/ex-mode
atom -d . # this command does not work
</code></pre>