==== darwinports // MacPorts ====

a port of the bsd 'ports' system for darwin based systems (eg. [[macOS]]) ,.. http://www.macports.org/

==== re.dport ====

<code>
%port installed &gt; installed.txt
</code> 

[reinstall...]

<code>
% sed 1,1d installed.txt | cut -f 3 -d ' ' | xargs -t -n 1 sudo port install
</code>

<code>
%port selfupdate && port upgrade outdated
</code>