I use rstakeout to automatically run my Cucumber features when a feature changes (yes I probably should be using watchr). I use the following command:
rstakeout "rake cucumber:wip" "features/**/*"
But sometimes I want to run the features manually. However, I don't want to leave my editor to do this. A mapping in Vim to trigger the run saves the day:
map <Leader>c :call system("touch features/support/env.rb")<CR>
