# list --- list the whole otg directory

   pr _
      build _
      otg_link.r.i _
      otg_def.r.i _
      otg_com.r.i _
      otg_lit_com.r.i _
      otg_ext_com.r.i _
      otg.r _
      otg_mem.r.i _
      [files src -sf | find "~%src$" | sort] _
      / [args]