# Macaddr-0.0.1 **URL:** \ **Category:** Ruby\ **Created:** [September 8, 2007, 7:39pm UTC](https://www.ruby-forum.com/t/macaddr-0-0-1/114156 "2007-09-08T19:39:36Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![ara.t.howard](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a8b319/32.png) [@ara.t.howard](https://www.ruby-forum.com/u/ara.t.howard)\ **Post date:** [September 8, 2007, 7:39pm UTC](https://www.ruby-forum.com/t/macaddr-0-0-1/114156/1 "2007-09-08T19:39:36Z")
NAME macaddr DESCRIPTION cross platform mac address determination for ruby URI [http://codeforpeople.com/lib/ruby](http://codeforpeople.com/lib/ruby) [http://rubyforg.org/projects/codeforpeople](http://rubyforg.org/projects/codeforpeople) INSTALL gem install macaddr SYNOPSIS require ‘macaddr’ Mac.addr #=\> first mac addr on your system Mac.addr.list #=\> all mac addrs on your system enjoy. a @ [http://drawohara.com/](http://drawohara.com/) ---
**Author:** ![ara.t.howard](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a8b319/32.png) [@ara.t.howard](https://www.ruby-forum.com/u/ara.t.howard)\ **Post date:** [September 8, 2007, 8:49pm UTC](https://www.ruby-forum.com/t/macaddr-0-0-1/114156/2 "2007-09-08T20:49:45Z")
quoth the ara.t.howard: > NAME > > macaddr > > DESCRIPTION > > cross platform mac address determination for ruby This is too perfect, I was just going to start looking for some code to find MAC addresses for a project I plan to start. Thanks! -d ---
**Author:** ![ara.t.howard](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a8b319/32.png) [@ara.t.howard](https://www.ruby-forum.com/u/ara.t.howard)\ **Post date:** [September 8, 2007, 9:19pm UTC](https://www.ruby-forum.com/t/macaddr-0-0-1/114156/3 "2007-09-08T21:19:47Z")
On Sep 8, 2007, at 12:48 PM, darren kirby wrote: > quoth the ara.t.howard: funny 😉 > MAC addresses for a project I plan to start. Thanks! great. it’s pretty simply code, but known to work on osx, linux, and windoze. patches for other oses appreciated. kind regards. a @ [http://drawohara.com/](http://drawohara.com/) ---
**Author:** ![ara.t.howard](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a8b319/32.png) [@ara.t.howard](https://www.ruby-forum.com/u/ara.t.howard)\ **Post date:** [September 9, 2007, 1:30am UTC](https://www.ruby-forum.com/t/macaddr-0-0-1/114156/4 "2007-09-09T01:30:11Z")
Thanks Ara… Quick question, what does first mean? Do you look at interface metrics or weights, or just the first alphabetic interface? Thx On Sep 8, 2007, at 1:38 PM, “ara.t.howard” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![ara.t.howard](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a8b319/32.png) [@ara.t.howard](https://www.ruby-forum.com/u/ara.t.howard)\ **Post date:** [September 9, 2007, 2:13am UTC](https://www.ruby-forum.com/t/macaddr-0-0-1/114156/5 "2007-09-09T02:13:14Z")
On Sep 8, 2007, at 5:29 PM, X1 wrote: > Quick question, what does first mean? > > Do you look at interface metrics or weights, or just the first > alphabetic interface? Thx programs like ‘ifconfig’ dump out mac addrs in some order - i have no idea what that order is nor have made any effort to do so, esp on other platforms. basically the ‘macaddr’ gem just knows how to shell out and parse the output of the appropriate networking status command on various platforms and scrapes the output for macaddr looking tokens. so Mac.addr #=\> the first address seen in the output Mac.addr.list #=\> all mac addrs seen in the output (Array) Mac.addr.list.first #=\> the first one, same as Mac.addr so far my uses of determining mac addr have simply been to get a unique id for things like encryption so i haven’t cared _which_ mac addr i found, only that i found _an_ address. answer your question? kind regards. a @ [http://drawohara.com/](http://drawohara.com/) ---
**Author:** ![ara.t.howard](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a8b319/32.png) [@ara.t.howard](https://www.ruby-forum.com/u/ara.t.howard)\ **Post date:** [September 10, 2007, 4:25am UTC](https://www.ruby-forum.com/t/macaddr-0-0-1/114156/6 "2007-09-10T04:25:44Z")
From: ara.t.howard [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] # Mac.addr #=\> the first address seen in the output # Mac.addr.list #=\> all mac addrs seen in the output (Array) # Mac.addr.list.first #=\> the first one, same as Mac.addr do you have plans to get macaddr on remote pc? kind regards -botp ---
**Author:** ![ara.t.howard](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a8b319/32.png) [@ara.t.howard](https://www.ruby-forum.com/u/ara.t.howard)\ **Post date:** [September 9, 2007, 4:06am UTC](https://www.ruby-forum.com/t/macaddr-0-0-1/114156/7 "2007-09-09T04:06:20Z")
Actually, it does work. It looks like windows lists the interface assigned with the default route of 0.0.0.0 first. Cool. Not sure about nix as I only have one interface right now. Good deal. Thanks again