solved:
void Read(QString file){
QProcess process;
process.startDetached(file);
}
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QTimer t;
QObject::connect(&t, &QTimer::timeout, [&](){
Read(s);
t.stop();
});
t.start(60000);
return a.exec();
}