steeve/boot2docker — pull request #135 by al-x (2014-02-06 04:13:52+00:00)
Title: unix golf: replace grep-head-cut-tr pipeline w/awk

Tested on Darwin 12.5 awk 20070501, mawk 1.3.3, and GNU Awk 3.1.7.
'-s' replaces '2>/dev/null'