Help to analyze /convert "command string "

[Anonymous_Banned275]

This is my command string passed to "system".
It works as expected, but...
I need to use QProcess defined as

myProcess->start(program, arguments);

"echo q | sudo -S hcitool info 98:D3:31:F8:39:33";

My question to the forum
what is my "program " echo ??
how to code the arguments ?

echo, QStringList << q << "|"
<< sudo ??

ADDENDUM

I did try this, it does what it is instructed to do
just "echo" the command line.
Could somebody kindly please help me to write correct command (program) and its arguments ?

 QProcess *QP = new QProcess();
                            QP->start(" echo q  | sudo -S hcitool info 98:D3:31:F8:39:33 ") ;
                            if(QP->waitForStarted())
                            {
                                text = "SUCCESS started";
                                 ui->textEdit->append(text);
                                qDebug() << text;
                                if(QP->waitForReadyRead())
                                {   text = "SUCCESS waitForReadyRead() OK ";
                                     ui->textEdit->append(text);
                                    qDebug() << text;
                                    text = QP->readAllStandardOutput();
                                    ui->textEdit->append(text);
                                    qDebug() << text;
                                }
                            }
                            else
                            {
                                text = " FAILED start ";

                            }
                            qDebug() << text;
                            return;

[Christian Ehrlicher]

Dupe of https://forum.qt.io/topic/154632