cjac@dev0:/usr/src/git/alioth$ sudo dpkg -i ironruby-cil_0.9.0+dfsg_all.deb
Selecting previously deselected package ironruby-cil.
(Reading database ... 67034 files and directories currently installed.)
Unpacking ironruby-cil (from ironruby-cil_0.9.0+dfsg_all.deb) ...
Setting up ironruby-cil (0.9.0+dfsg) ...
cjac@dev0:/usr/src/git/alioth$ which ir
/usr/bin/ir
cjac@dev0:/usr/src/git/alioth$ ir
IronRuby 0.9.0.0 on Mono 2.4.2.3
Copyright (c) Microsoft Corporation. All rights reserved.

>>> exit