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command prompt command execution in Qt

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  • Pranit PatilP Pranit Patil

    Any one here ?

    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by JonB
    #4

    @Pranit-Patil said in command prompt command execution in Qt:

    Any one here ?

    You posted that 9 minutes after your original query. Do you pay for my support, or anyone else's, within 10 minutes? :( Or do you just think it's my/our duty? In which case I'll leave it to others for you from now on...

    1 Reply Last reply
    1
    • JonBJ JonB

      @Pranit-Patil

      QProcess::execute("gedit my.txt")

      QProcess::execute("mkdir folder")

      In practice you should probably use the http://doc.qt.io/qt-5/qprocess.html#execute overload to pass the argument(s) as a QStringList.

      P.S.
      To create a folder, don't actually use a sub-process of mkdir, use the in-built Qt function for creating a directory.

      Pranit PatilP Offline
      Pranit PatilP Offline
      Pranit Patil
      wrote on last edited by
      #5

      @JonB
      i m doing simply like this but not getting o/p

      QProcess process;
      QString exePath = "C:/Windows/ystem32/cmd.exe";
      process.start(exePath);
      process.execute("cmd.exe");

      @Embedded Software Developer
      God has given you one face, and you make yourself another.

      JonBJ 1 Reply Last reply
      0
      • Pranit PatilP Pranit Patil

        @JonB
        i m doing simply like this but not getting o/p

        QProcess process;
        QString exePath = "C:/Windows/ystem32/cmd.exe";
        process.start(exePath);
        process.execute("cmd.exe");

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by JonB
        #6

        @Pranit-Patil
        I gave you the lines to type for your question. If you choose to do something quite different and wrong, that's up to you. Perhaps others will sort you out.

        Pranit PatilP 1 Reply Last reply
        0
        • JonBJ JonB

          @Pranit-Patil
          I gave you the lines to type for your question. If you choose to do something quite different and wrong, that's up to you. Perhaps others will sort you out.

          Pranit PatilP Offline
          Pranit PatilP Offline
          Pranit Patil
          wrote on last edited by
          #7

          @JonB sorry for that

          i tried your examples
          QProcess::execute("gedit my.txt");
          QProcess::execute("mkdir Test");

          but not getting any error or any output.

          @Embedded Software Developer
          God has given you one face, and you make yourself another.

          JonBJ 1 Reply Last reply
          0
          • Pranit PatilP Pranit Patil

            @JonB sorry for that

            i tried your examples
            QProcess::execute("gedit my.txt");
            QProcess::execute("mkdir Test");

            but not getting any error or any output.

            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by JonB
            #8

            @Pranit-Patil

            Neither command should produce any error or output. Unless you don't even have gedit.... And if you're Windows (your question does not even mention the OS), you may need QProcess::execute("cmd /c mkdir Test");.

            Pranit PatilP 1 Reply Last reply
            2
            • JonBJ JonB

              @Pranit-Patil

              Neither command should produce any error or output. Unless you don't even have gedit.... And if you're Windows (your question does not even mention the OS), you may need QProcess::execute("cmd /c mkdir Test");.

              Pranit PatilP Offline
              Pranit PatilP Offline
              Pranit Patil
              wrote on last edited by
              #9

              @JonB Im Developing application in Qt creator 4.6.0 on windows 7 -32bit

              #include <QProcess>
              #include <QDir>
              void Command::on_pushButton_clicked()
              {
              QProcess process;
              QString exePath1 = "D:/Phoenix";
              process.start(exePath1);
              process.execute("cmd /c mkdir test");
              }
              not getting any output.

              @Embedded Software Developer
              God has given you one face, and you make yourself another.

              jsulmJ 1 Reply Last reply
              0
              • Pranit PatilP Pranit Patil

                @JonB Im Developing application in Qt creator 4.6.0 on windows 7 -32bit

                #include <QProcess>
                #include <QDir>
                void Command::on_pushButton_clicked()
                {
                QProcess process;
                QString exePath1 = "D:/Phoenix";
                process.start(exePath1);
                process.execute("cmd /c mkdir test");
                }
                not getting any output.

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by jsulm
                #10

                @Pranit-Patil "not getting any output." - what "output" do you expect?
                Why do you start new process to create a directory? You can do this way faster and easier with Qt (http://doc.qt.io/qt-5/qdir.html#mkdir)
                Also this does not make any sense:

                QProcess process;
                QString exePath1 = "D:/Phoenix";
                process.start(exePath1);
                process.execute("cmd /c mkdir test");
                

                You can't start a directory as it is not an executable. There is no need to use both start() AND execute().
                Did you actually read QProcess documentation?!
                It has a nice example:

                QString program = "./path/to/Qt/examples/widgets/analogclock";
                QStringList arguments;
                arguments << "-style" << "fusion";
                
                QProcess *myProcess = new QProcess(parent);
                myProcess->start(program, arguments);
                

                https://forum.qt.io/topic/113070/qt-code-of-conduct

                JonBJ 1 Reply Last reply
                4
                • jsulmJ jsulm

                  @Pranit-Patil "not getting any output." - what "output" do you expect?
                  Why do you start new process to create a directory? You can do this way faster and easier with Qt (http://doc.qt.io/qt-5/qdir.html#mkdir)
                  Also this does not make any sense:

                  QProcess process;
                  QString exePath1 = "D:/Phoenix";
                  process.start(exePath1);
                  process.execute("cmd /c mkdir test");
                  

                  You can't start a directory as it is not an executable. There is no need to use both start() AND execute().
                  Did you actually read QProcess documentation?!
                  It has a nice example:

                  QString program = "./path/to/Qt/examples/widgets/analogclock";
                  QStringList arguments;
                  arguments << "-style" << "fusion";
                  
                  QProcess *myProcess = new QProcess(parent);
                  myProcess->start(program, arguments);
                  
                  JonBJ Offline
                  JonBJ Offline
                  JonB
                  wrote on last edited by JonB
                  #11

                  @jsulm
                  I already pointed all this stuff to OP above.
                  Additionally, I also deliberately used QProcess::execute() in my examples for him to keep it down to one liners. Each time he has also added an additional QProcess::start(). I suggested he just copy my examples verbatim to avoid this, but we don't seem to be getting anywhere.... I'll leave it to you :)

                  Pranit PatilP 2 Replies Last reply
                  1
                  • JonBJ JonB

                    @jsulm
                    I already pointed all this stuff to OP above.
                    Additionally, I also deliberately used QProcess::execute() in my examples for him to keep it down to one liners. Each time he has also added an additional QProcess::start(). I suggested he just copy my examples verbatim to avoid this, but we don't seem to be getting anywhere.... I'll leave it to you :)

                    Pranit PatilP Offline
                    Pranit PatilP Offline
                    Pranit Patil
                    wrote on last edited by
                    #12

                    @JonB
                    Thank you for your reply
                    Sorry sir i didn't understand what your saying ..?

                    aim - create folder in my system using commands of cmd prompt in any location through QT application.

                    Im new in Qt i don't have more knowledge on it plz suggest

                    @Embedded Software Developer
                    God has given you one face, and you make yourself another.

                    1 Reply Last reply
                    0
                    • JonBJ JonB

                      @jsulm
                      I already pointed all this stuff to OP above.
                      Additionally, I also deliberately used QProcess::execute() in my examples for him to keep it down to one liners. Each time he has also added an additional QProcess::start(). I suggested he just copy my examples verbatim to avoid this, but we don't seem to be getting anywhere.... I'll leave it to you :)

                      Pranit PatilP Offline
                      Pranit PatilP Offline
                      Pranit Patil
                      wrote on last edited by
                      #13

                      @JonB @jsulm its working now thank u so much sir.
                      and sorry that.

                      @Embedded Software Developer
                      God has given you one face, and you make yourself another.

                      1 Reply Last reply
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