qt中调用shell脚本并监控返回的方法

QProcess runShellProcess =new QProcess(this);

//调用过程输出的监控
    connect(runShellProcess, SIGNAL(readyRead()), this, SLOT(readProcess()));
    connect(runShellProcess, SIGNAL(finished(int)), this, SLOT(finishedProcess()));

void MainWindow::executeShellQProcess(const char *shell){
    shellOutput="";
    runShellProcess->start(shell);
}

void MainWindow::readProcess(){
    QString output=runShellProcess->readAll();
     shellOutput+=output;
     //do something
}

void MainWindow::finishedProcess(){
    qDebug()<<shellOutput;
     //do something
}