">)</span></span>
<span></span>
<span><span class="fu">doGRASS</span><span class="op">(</span></span>
<span>  <span class="va">cmd</span>,</span>
<span>  flags <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  <span class="va">...</span>,</span>
<span>  parameters <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  echoCmd <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  legacyExec <span class="op">=</span> <span class="cn">NULL</span></span>
<sp