These are the steps needed to set up Sublime Text 2 as in the Ruby on Rails Tutorial. Instructions are for OS X; Linux and Windows users should make substitutions as necessary. (This may require web searches. Please let me know if you find something that you think should be included here.)
On OS X, you can set up subl as a command-line command by following the Sublime Text 2 instructions for the OS X command line:
$ ln -s "/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl" ~/bin/subl
This assumes that ~/bin is in your path. If isn't (which you can check using echo $PATH at the command line) you can put subl in /usr/bin:
$ sudo ln -s "/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl" /usr/bin/subl
Note the use of sudo, which is required because ordinary users don't have permission to write to /usr/bin.
On Linux (especially Ubuntu), the command is the same as for OS X; only the paths differ:
$ sudo ln -s ~/Applications/Sublime\ Text\ 2/sublime_text /usr/bin/subl
(You may have to replace the path to sublime_text with the correct one for your system.)
On Linux Mint, take a look at Install Sublime Text 2 in Linux Mint.
On Windows, you can simply double-click the application icon. The setup at the command line depends on which shell you use; see if one of the techinques at the Stack Overflow discussion on Sublime Text from Command Line (Win7) works for you. You might also want to check out the video Easily Open Files from Windows Command Prompt with Sublime Text 2 (I suggest changing st2 to subl to be consistent with the instructions for the other platforms).
Open up Sublime Text and use the View menu to modify the following settings:
View > Hide Minimap
View > Side Bar > Hide Side Bar
View > Layout > Columns: 2
$ cd /tmp
$ git clone git@github.com:mhartl/rails_tutorial_sublime_text.git
$ cp -r rails_tutorial_sublime_text/* \
~/Library/Application\ Support/Sublime\ Text\ 2/Packages/User/
Setup on Linux is similar, but with a different target directory for cp:
$ cp -r rails_tutorial_sublime_text/* \
~/.config/sublime-text-2/Packages/User/
On Windows, the target directory is as follows:
$ cd /tmp
$ git clone git@github.com:mhartl/rails_tutorial_sublime_text.git
$ cp -r .\rails_tutorial_sublime_text\* \
'~\AppData\Roaming\Sublime Text 2\Packages\User'
Note: If using Windows Vista, 7, or 8, you should first copy all the folders and files from the remote repo into your local temporary folder located at C:\Users\User\AppData\Local\Temp. Then proceed to move these same files to C:\Users\User\AppData\Roaming\Sublime Text 2\Packages\User.
Follow the instructions at sublime-text-haml-sass.
Select Preferences > Color Scheme > User > Railscasts
https://github.com/mhartl/rails_tutorial_snippets
https://github.com/alexstaubo/sublime_text_alternative_autocompletion
https://github.com/eddorre/SublimeERB
Follow https://github.com/maltize/sublime-text-2-ruby-tests. Then edit the file "Theme - Default/Widget.sublime-settings" in the Library/Application\ Support/Sublime\ Text\ 2/Packages directory:
$ cd ~/Library/Application\ Support/Sublime\ Text\ 2/Packages
$ subl "Theme - Default/Widget.sublime-settings"
In that file, change
"color_scheme": "Packages/Theme - Default/Widgets.stTheme"
to
"color_scheme": "Packages/User/CustomTestConsole.tmTheme"