public function runCommandAsUserAndIgnoreErrors($command, $user)
{
// what are we doing?
$log = usingLog()->startAction("run command '{$command}' as user '{$user}' on host '{$this->args[0]}'");
// make sure we have valid host details
$hostDetails = $this->getHostDetails();
// get an object to talk to this host
$host = OsLib::getHostAdapter($this->st, $hostDetails->osName);
// make a copy of the hostDetails, so that we can override them
$myHostDetails = clone $hostDetails;
$myHostDetails->sshUsername = $user;
// run the command in the guest operating system
$result = $host->runCommand($myHostDetails, $command);
// all done
$log->endAction();
return $result;
}