Workbench Command is a set of command-line tools that can be used to perform simple and complex operations within Connectome Workbench.
REPORT LENGTH OF BORDERS
   wb_command -border-length
      <border> - the input border file
      <surface> - the surface to measure the borders on
      [-corrected-areas] - vertex areas to use instead of computing them from
         the surface
         <area-metric> - the corrected vertex areas, as a metric
      [-separate-pieces] - report lengths for multi-part borders as separate
         numbers
      [-hide-border-name] - don't print border name before each output
      For each border, print its length along the surface, in mm.  If a border
      has multiple parts, their lengths are summed before printing, unless
      -separate-pieces is specified.
      The -corrected-areas option is intended for when the length is not
      meaningfully measurable on individual surfaces, it is only an approximate
      correction for the reduction in structure of a group average surface.