title: How to push to github with custom commit message with npm scripts?
body: <p>In my <code>package.json</code> I have this</p>
  
  <pre><code>  "scripts": {
      "start": "gulp serve",
      "git": "git add . &amp;&amp; git commit -m 'some-message' &amp;&amp; git push --all"
    },
  </code></pre>
  
  <p>In the terminal I run <code>npm run git</code> and the changes are pushed. But how can I change the commit message on the fly? For example <code>npm run git MESSAGE='another commit'</code></p>