The Regular Expression Edition – by Guest Contributor – Why is this interesting?:

There is an old programmer joke (generally attributed to Jamie Zawinski) that goes: “Some people, when confronted with a problem, think ‘I know, I’ll use regular expressions.’ Now they have two problems.” In accidentally cutting off access to a large part of the Internet for an entire country (and in the process drawing embarrassing attention to Russia’s censorship efforts), our anonymous bureaucrat seems to have proven that old chestnut quite handily.

Via – kottke.org

Collin Donnell – Remove Duplicate Path Entries:

export PATH=$(echo $PATH | ruby -F: -ane ‘puts $F.uniq.join(“:”).chomp’)

This is beautiful.

dspinellis/unix-history-repo: Continuous Unix commit history from 1970 until today:

The history and evolution of the Unix operating system is made available as a revision management repository, covering the period from its inception in 1970 as a 2.5 thousand line kernel and 26 commands, to 2018 as a widely-used 30 million line system. The 1.5GB repository contains about half a million commits and more than two thousand merges. The repository employs Git system for its storage and is hosted on GitHub. It has been created by synthesizing with custom software 24 snapshots of systems developed at Bell Labs, the University of California at Berkeley, and the 386BSD team, two legacy repositories, and the modern repository of the open source FreeBSD system. In total, about one thousand individual contributors are identified, the early ones through primary research. The data set can be used for empirical research in software engineering, information systems, and software archaeology.

You