@julian, Hmm... Tried. Got the following:
# ./nodebb setup
22/11 21:19 [7498] - info: NodeBB v0.6.0-dev Copyright (C) 2013-2014 NodeBB Inc.
22/11 21:19 [7498] - info: This program comes with ABSOLUTELY NO WARRANTY.
22/11 21:19 [7498] - info: This is free software, and you are welcome to redistribute it under certain conditions.
22/11 21:19 [7498] - info:
22/11 21:19 [7498] - info: NodeBB Setup Triggered via Command Line
22/11 21:19 [7498] - info: Welcome to NodeBB!
22/11 21:19 [7498] - info: This looks like a new installation, so you'll have to answer a few questions about your environment before we can proceed.
22/11 21:19 [7498] - info: Press enter to accept the default setting (shown in brackets).
URL used to access this NodeBB (http://example.com)
Port number of your NodeBB (4367) /var/run/example.sock
error: Invalid input for Port number of your NodeBB
error: Please enter a value betweeen 1 and 65535
Port number of your NodeBB (4367)