sass-convert --help

gistfile1.txt

Usage: sass-convert [options] [INPUT] [OUTPUT]

Description:
  Converts between CSS, Sass, and SCSS files.
  E.g. converts from SCSS to Sass,
  or converts from CSS to SCSS (adding appropriate nesting).

Options:
    -F, --from FORMAT                The format to convert from. Can be css, scss, sass, less.
                                     By default, this is inferred from the input filename.
                                     If there is none, defaults to css.
    -T, --to FORMAT                  The format to convert to. Can be scss or sass.
                                     By default, this is inferred from the output filename.
                                     If there is none, defaults to sass.
    -R, --recursive                  Convert all the files in a directory. Requires --from and --to.
    -i, --in-place                   Convert a file to its own syntax.
                                     This can be used to update some deprecated syntax.
        --dasherize                  Convert underscores to dashes
        --old                        Output the old-style ":prop val" property syntax.
                                     Only meaningful when generating Sass.
    -C, --no-cache                   Don't cache to sassc files.
    -E encoding                      Specify the default encoding for Sass and CSS files.
    -s, --stdin                      Read input from standard input instead of an input file
        --trace                      Show a full traceback on error
        --unix-newlines              Use Unix-style newlines in written files.
    -?, -h, --help                   Show this message
    -v, --version                    Print version