rspec opciones

[~/srcLPPclases/question-simple_choice(develop2)]$ rspec --help
Usage: rspec [options] [files or directories]

    -I PATH                          Specify PATH to add to $LOAD_PATH 
                                     (may be used more than once).
    -r, --require PATH               Require a file.
    -O, --options PATH               Specify the path to a custom options file.
        --order TYPE[:SEED]          Run examples by the specified order type.
                                       [defined] examples and groups are run 
                                       in the order they are defined
                                       [rand]    randomize the order of 
                                       groups and examples
                                       [random]  alias for rand
                                       [random:SEED] e.g. --order random:123
        --seed SEED                  Equivalent of --order rand:SEED.
        --fail-fast                  Abort the run on first failure.
        --no-fail-fast               Do not abort the run on first failure.
        --failure-exit-code CODE     Override the exit code used when there 
                                     are failing specs.
        --dry-run                    Print the formatter output of your 
                                     suite without
                                     running any examples or hooks
    -X, --[no-]drb                   Run examples via DRb.
        --drb-port PORT              Port to connect to the DRb server.
        --init                       Initialize your project with RSpec.

  **** Output ****

    -f, --format FORMATTER           Choose a formatter.
                                       [p]rogress (default - dots)
                                       [d]ocumentation (group and example names)
                                       [h]tml
                                       [j]son
                                       custom formatter class name
    -o, --out FILE                   Write output to a file instead of $stdout. 
                                     This option applies to the previously 
                                     specified --format, or the default format
                                     if no format is specified.
        --deprecation-out FILE       Write deprecation warnings to a file instead of $stderr.
    -b, --backtrace                  Enable full backtrace.
    -c, --[no-]color, --[no-]colour  Enable color in the output.
    -p, --[no-]profile [COUNT]       Enable profiling of examples 
                                     and list the slowest examples 
                                     (default: 10).
    -w, --warnings                   Enable ruby warnings

  **** Filtering/tags ****

  In addition to the following options for selecting specific files,
  groups, or examples, you can select a single example by appending
  the line number to the filename:

      rspec path/to/a_spec.rb:37

    -P, --pattern PATTERN            Load files matching pattern 
                                     (default: "spec/**/*_spec.rb").
        --exclude-pattern PATTERN    Load files except those matching pattern. 
                                     Opposite effect of --pattern.
    -e, --example STRING             Run examples whose full nested names 
                                     include STRING (may be
                                     used more than once)
    -t, --tag TAG[:VALUE]            Run examples with the specified tag, 
                                     or exclude examples
                                     by adding ~ before the tag.
                                       - e.g. ~slow
                                       - TAG is always converted to a symbol
        --default-path PATH          Set the default path where RSpec looks for examples (can
                                       be a path to a file or a directory).

  **** Utility ****

    -v, --version                    Display the version.
    -h, --help                       You're looking at it.