Gollum is hiding, even after installing and adding gem directories to my $PATH. This is mac OSX.

Terminal

$ which gollum
» ~/Code/Parsely/web.wiki (web+wiki) [master]
$ gem which gollum
/usr/local/Cellar/ruby/2.0.0-p247/lib/ruby/gems/2.0.0/gems/gollum-2.5.1/lib/gollum.rb
» ~/Code/Parsely/web.wiki (web+wiki) [master]
$ echo $PATH
/usr/local/bin:/usr/local/bin:/Users/gw/.virtualenvs/web+wiki/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/sbin::/usr/local/sbin:/Users/gw/.gem/ruby/1.8::/usr/local/sbin:/Users/gw/.gem/ruby/1.8:/Users/gw/.gem/ruby/2.0.0::/usr/local/sbin:/Users/gw/.gem/ruby/1.8:/Users/gw/.gem/ruby/2.0.0:/usr/local/Cellar/ruby/2.0.0-p247/lib/ruby/gems/2.0.0/
» ~/Code/Parsely/web.wiki (web+wiki) [master]
$ ruby -v
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.5.0]
» ~/Code/Parsely/web.wiki (web+wiki) [master]
$ gem -v
2.0.3

I installed gollum via: sudo gem install --verbose gollum

Also, i can execute gollum directly:

/usr/local/Cellar/ruby/2.0.0-p247/lib/ruby/gems/2.0.0/gems/gollum-2.5.1/bin/gollum
[2013-10-16 15:44:30] INFO WEBrick 1.3.1
[2013-10-16 15:44:30] INFO ruby 2.0.0 (2013-06-27) [x86_64-darwin12.5.0]
== Sinatra/1.4.3 has taken the stage on 4567 for development with backup from WEBrick
[2013-10-16 15:44:30] INFO WEBrick::HTTPServer#start: pid=18892 port=4567
^C

Added some gem dirs to my PATH manually in ~/.bash_profile:

export PATH="/usr/local/bin:"$PATH:":/usr/local/sbin:/Users/gw/.gem/ruby/1.8:/Users/gw/.gem/ruby/2.0.0:/usr/local/Cellar/ruby/2.0.0-p247/lib/ruby/gems/2.0.0/gems"