ahoward/macaddr — pull request #9 by statianzo (2012-05-10 17:15:30+00:00)
Title: Support for systems without ifconfig

In support for systems where net-tools has been [deprecated][1], an
alternative is needed to locate mac addresses. Using cat on
/sys/class/net/*/address will print the mac addresses of all network
devices without relying on any specific tool.

[1]: http://www.archlinux.org/news/deprecation-of-net-tools/