&gt; Regexes for globbing files might be a new one<p>Regexes in particular are new AFAIK, but zsh&#x27;s extended globbing is already extremely powerful: <a href="http:&#x2F;&#x2F;www.refining-linux.org&#x2F;archives&#x2F;37&#x2F;ZSH-Gem-2-Extended-globbing-and-expansion&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.refining-linux.org&#x2F;archives&#x2F;37&#x2F;ZSH-Gem-2-Extended...</a><p>Bash also comes close, iirc.<p>But we use shells because of their ubiquity, not because of how nice scripting languages they are (they aren&#x27;t). So I don&#x27;t see myself ever using xonsh – I&#x27;m already glad when a system has bash and I don&#x27;t have to figure out what &quot;posix &#x2F;bin&#x2F;sh compliant&quot; is supposed to mean this week.