What's the correct syntax for options when generating Blueprint CSS files in SSH with Ruby command?

I need to generate default Blueprint CSS files using a Ruby command in the Shell. However the column_width, amount and gutter parameters aren't coming trough. I think i don't understand the syntax...

is this correct:

ruby compress.rb -o /var/www/css/blueprint/src/ -p 70 15 12

for this documentation?

joshua-claytons-computer:lib joshuaclayton$ ru开发者_StackOverflow中文版by compress.rb -h
Usage: compress.rb [options]
Blueprint Compressor

options
  -o, --output_path=OUTPUT_PATH    Define a different path to output generated CSS files to.
  -n, --namespace=BP_NAMESPACE     Define a namespace prepended to all Blueprint classes (e.g. .your-ns-span-24)
  -p, --project=PROJECT_NAME       If using the settings.yml file, PROJECT_NAME is the project name you want to export
      --column_width=COLUMN_WIDTH  Set a new column width (in pixels) for the output grid
      --gutter_width=GUTTER_WIDTH  Set a new gutter width (in pixels) for the output grid
      --column_count=COLUMN_COUNT  Set a new column count for the output grid
  -h, --help                       Show this help message.

Based on the usage help I think you will need to specify the argument names instead of relying simply on their position. Also you specified the -p parameter without providing a project name. Perhaps something like this will work better for you:

ruby compress.rb -o /var/www/css/blueprint/src/ --column_width=70 --gutter_width=15 --gutter_width=12