Can't launch simple command with qprocess

roy942

Hi,

I'm trying to launch a console command via qprocess but execute always return -2 (process can't start i mean). My purpose is more complicated but the simple code below do nothing:

QProcess gitProcess;
gitProcess.setProcessEnvironment(QProcessEnvironment::systemEnvironment());
gitProcess.setWorkingDirectory(QString::fromLatin1(a_args.workingDirectory));
int iRet = gitProcess.execute("mkdir test");

I don't understand what I do wrong.

Thanks.
(sorry for my english)

J.Hilk

@roy942

first of, you need to realise QProcess is not a terminal/shell/commandprompt .

but you can launch one with it and have that one execute your mkdir command:

I assume Windows(?)

    QProcess Process;
    QObject::connect(&Process, &QProcess::errorOccurred, &app, [](QProcess::ProcessError error)->void{qDebug() << error;});
    Process.start("cmd.exe", QStringList() << "/C" <<"mkdir"<< "test");

mrjj

Hi
mkdir is not an .exe file but a build-in command and hence you can't just start it and has to start it via
cmd.exe as J-Hilk shows.

SGaist

Hi,

Or more cross-platform: QDir::mkdir.