How to remove the first dot from every line but only if it exists : <p>I have a list of subdomains and I want to remove any dot at the beginning of a line, if there is no dot at the beginning of the line, then it leaves that line untouched.</p>

<p>Like this example:</p>

<pre><code>x8.ext.indeed.com
yk1.ext.indeed.com
za.indeed.com
zera.ext.indeed.com
.envoy.eastus2.qa.notjet.net
.envoy.westus.qa.notjet.net
.nomad.eastus2.qa.notjet.net
.nomad.westus.qa.notjet.net
.notjet.net
.torbit.notjet.net
artifacts.notjet.net
bamf.notjet.net
bamfdb.notjet.net
</code></pre>
