how to use sudo command in Qprocess

i want to execute this shell command in qt

Code:

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sudo ./filename.sh

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this code executng in terminal,,while in Qprocess i getting error

Code:

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/bin/sh: 0: Can't open sudo

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my code below:

Code:

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QProcess process;
bool x;
qint8 status;
x=process.startDetached("/bin/sh", QStringList()<< "sudo "<<"./samp.sh");
qDebug()<<process.readAllStandardOutput();
status=process.waitForFinished();
if(!x)
{
    qDebug()<<process.errorString();
}
else
{
    qDebug()<<"success";
}

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after searching i got one solution for sudo which wysota said
http://www.qtcentre.org/threads/3962...commands-linux

Code:

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QString apath,program;
QStringList args;
apath=QDir("/bin/bash").absolutePath());
program="gksudo";//i used gksudo i getting no answer
args << "apt-get install";
process->start(program,args);

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how to use sudo commang in Qprocess please give me suggestion for this:(
Thanks in advance:)

Quote:

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Originally Posted by iswaryasenthilkumar

i want to execute this shell command in qt

Code:

---

sudo ./filename.sh

---

---

If this is the command you want to execute, why is your startDetached() executing /bin/sh?

Quote:

---

Originally Posted by iswaryasenthilkumar

Code:

---

x=process.startDetached("/bin/sh", QStringList()<< "sudo "<<"./samp.sh");
qDebug()<<process.readAllStandardOutput();
status=process.waitForFinished();

---

---

I would recomend to have a look at the documentation of QProcess, especially the section startDetached() is in (static public members).
You should then come to the right conclusion why this code above will never do what you seem to expect it would.

Cheers,
_

thanks anda_skoa ..i read qprocess documentation and understand my mistake.and i changed my code,
p

Code:

---

bool success;
QProcess gunzip;
QStringList arguments;
gunzip.setProcessChannelMode(QProcess::MergedChannels);
QString program = "gksudo";
arguments<<"./omxtx.sh";
gunzip.start(program, arguments);
success = gunzip.waitForStarted();
if (!success)
{
qDebug("waitForStarted() error: %s", gunzip.errorString().toUtf8().constData());
return;
}
success = gunzip.waitForFinished();
if (!success)
{
qDebug("waitForFinished() error: %s", gunzip.errorString().toUtf8().constData());
return;
}
QByteArray buffer = gunzip.readAll();
QString output = buffer;
qDebug("%s", output.toUtf8().constData());

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the above code executing but i dont get proper result it getting password from user after that it not showing the the file output actualy inside the file i wrote echo hello i need output as hello i dont get this result i used this command "gksudo ./omxtx.sh" in terminal it get password and showing hello but in qt it getting password but it not showing hello what mistake am doing please guide me to get proper result[QUOTE=anda_skoa;278544]

Quote:

---

Originally Posted by iswaryasenthilkumar

i want to execute this shell command in qt

Code:

---

sudo ./filename.sh

---

If this is the command you want to execute, why is your startDetached() executing /bin/sh?


I would recomend to have a look at the documentation of QProcess, especially the section startDetached() is in (static public members).
You should then come to the right conclusion why this code above will never do what you seem to expect it would.

Cheers,
_

---

Have you verified that the omxtx.sh is actually being executed?
Does it do what it is supposed to do and you are just not getting its output?

Cheers,
_

yes it executing in terminal i getting output "hello".bt in Qprocess am not getting that

Quote:

---

Originally Posted by anda_skoa

Have you verified that the omxtx.sh is actually being executed?
Does it do what it is supposed to do and you are just not getting its output?

Cheers,
_

---

Quote:

---

Originally Posted by iswaryasenthilkumar

yes it executing in terminal i getting output "hello".bt in Qprocess am not getting that

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I am not sure what the relevance of that would be.

You already stated that it works if called manually, so that is obviously not what I meant when I wrote whether you verified that the script got executed.

But to make it more clear: check that the script actually gets executed when you run gksudo through QProcess.
I.e. to determine whether your problem with then output is the script not running or the text not being visible to QProcess.

Cheers,
_