stderr.html">stderr</a> for using the Process's
standard error stream.</p>
<p>A Process's streams are distinct from the top-level streams
for the current program.</p>
<h2 id="exit-codes">Exit codes</h2>
<p>Call the <a href="../dart-io/Process/exitCode.html">exitCode</a> method to get the exit code of the process.
The exit code indicates whether the program terminated successfully
(usually indicated with an exit code of 0) or with an error.</p>
<p>If the start method is used, the exitCode is available throug