Hi, sometimes it´s fun „programming“ a workflow or a service with the automator (and some times not). Because there is no macruby cmd in the shell script section, I wrote this install script: # file: automator-macruby.rb # # extend the automator shell script configuration # by simply copying the ruby configuration to macruby # (must be executed with sudo) AUTOMATOR_SHELL_CONFIG = "/System/Library/Automator/Run Shell Script.action/Contents/Resources/Shells.plist" shell_config = NSDictionary.dictionaryWithContentsOfFile AUTOMATOR_SHELL_CONFIG raise "automator shell config file: not found" if shell_config.nil? ruby_path = `which ruby`.strip ruby_config = shell_config[ruby_path] raise "ruby configuration: not found" if ruby_config.nil? macruby_path = `which macruby`.strip shell_config[macruby_path] = ruby_config ok = shell_config.writeToFile(AUTOMATOR_SHELL_CONFIG, atomically:false) raise "automator shell config file: write error" if ok == 0