Look in the rdoc documentation for Daemons:
idfile. If daemons is
installed as a gem, then
gem server --daemon
and point web browser at
http://localhost:8808/
Or just read the comments in the source, which will probably be
installed somewhere like
/usr/lib/ruby/gems/1.8/gems/daemons-1.0.10/lib/daemons/pidfile.rb
There you will find the following documentation:
# === Where are the Pid-Files stored?
#
# Daemons is configurable to store the Pid-Files relative to three
different locations:
# 1. in a directory relative to the directory where the script (the
one that is supposed to run
# as a daemon) resides (<tt>:script</tt> option for
<tt>:dir_mode</tt>)
# 2. in a directory given by <tt>:dir</tt> (<tt>:normal</tt> option
for <tt>:dir_mode</tt>)
# 3. in the preconfigured directory <tt>/var/run</tt>
(<tt>:system</tt> option for <tt>:dir_mode</tt>)