Abbreviation of "Emacs Has a Command for That."
Emacs, the extensible text editor is famous (notorious) for its extensive (bloated) feature set; to the point that there is an XKCD comic about it.
eyre: I just wrote a handy Perl script
eyre: it turns the error logs into a list of faulty HTML files.
eyre: wat ur kidding
slaine: lol next time check emacswiki first