View the most recent changes for the rb-ifconfig port at: rb-ifconfig.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for rb-ifconfig.
The raw portfile for rb-ifconfig is located here:
http://rb-ifconfig.darwinports.com/dports/ruby/rb-ifconfig/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/rb-ifconfig

The rb-ifconfig Portfile 40601 2008-10-08 07:18:04Z jmr macports.org $
PortSystem 1.0
PortGroup ruby 1.0

ruby.setup {ifconfig ruby-ifconfig} 1.2 setup.rb {README TODO ChangeLog test}
Maintainers: nomaintainer
Description: Ruby wrapper around the ifconfig command on many platforms
Long Description: This is a Ruby wrapper around the ifconfig command. The goal is to make getting any information that ifconfig provides easy to access.
Category:-append sysutils
Homepage: http://www.packetspike.net/~daniel/ruby/ifconfig/
Master Sites: ${homepage}
Checksums: md5 bef9810b76f6b1d53ed42a22a7a66320 sha1 dbcbcddc86fc02cdd3b642be31b5020a2f4f2f88
Platform: darwin

post-patch {
foreach file [glob ${worksrcpath}/test/*.rb ${worksrcpath}/test/ts_run] {
reinplace "s|^#!.*ruby|#!${ruby.bin}|" $file
}
}

test.run yes
test.dir ${worksrcpath}/test
test.cmd ${ruby.bin}
test.target ./ts_run

If you haven't already installed Darwin Ports, you can find easy instructions for doing so at the main Darwin Ports page.
Once Darwin Ports has been installed, in a terminal window and while online, type the following and hit return:

%  cd /opt/local/bin/portslocation/dports/rb-ifconfig
%  sudo port install rb-ifconfig  
Password: 

You will then be prompted for your root password, which you should enter. You may have to wait for a few minutes while the software is retrieved from the network and installed for you. Y ou should see something that looks similar to:

--->  Fetching rb-ifconfig
--->  Verifying checksum for rb-ifconfig
--->  Extracting rb-ifconfig
--->  Configuring rb-ifconfig
--->  Building rb-ifconfig with target all

--->  Staging rb-ifconfig into destroot

--->  Installing rb-ifconfig

- Make sure that you do not close the terminal window while Darwin Ports is working. Once the software has been installed, you can find further information about using rb-ifconfig with these commands:

%  man rb-ifconfig
%  apropos rb-ifconfig
%  which rb-ifconfig
%  locate rb-ifconfig

 Where to find more information: