Execute system command from QProcess

[graciano]

Hi,
I was writing a small piece of code to execute some system commands.
I'm using Debian, i changed GDM3 to allow root access (no security issues needed in this case) and the code is:

void criarWindowsDialog::on_pushButton_2_clicked()
{
    ui->commandTextEdit->append("Processo iniciado ...");
    QProcess processo;
    QString comando;
    QStringList args;
    QString fullCommand;
    QString stdOut;
    QString stdError;
 
    //comando 1 - limpar a pasta
    comando = "rm";
    args.clear();
    args<<"-f"<<"/home/srp/imagens/windows/*";
    fullCommand = comando;
    for(int i = 0; i < args.count(); i++)
        fullCommand += " " + args.at(i);
    processo.start(comando,args,QIODevice::ReadOnly);
    processo.waitForFinished();
    stdOut = processo.readAllStandardOutput();
    stdError = processo.readAllStandardError();
    ui->commandTextEdit->append(fullCommand);
    ui->stdOutTextEdit->append(stdOut);
    ui->stdErrorTextEdit->append(stdError);

void criarWindowsDialog::on_pushButton_2_clicked()
{
    ui->commandTextEdit->append("Processo iniciado ...");
    QProcess processo;
    QString comando;
    QStringList args;
    QString fullCommand;
    QString stdOut;
    QString stdError;

    //comando 1 - limpar a pasta
    comando = "rm";
    args.clear();
    args<<"-f"<<"/home/srp/imagens/windows/*";
    fullCommand = comando;
    for(int i = 0; i < args.count(); i++)
        fullCommand += " " + args.at(i);
    processo.start(comando,args,QIODevice::ReadOnly);
    processo.waitForFinished();
    stdOut = processo.readAllStandardOutput();
    stdError = processo.readAllStandardError();
    ui->commandTextEdit->append(fullCommand);
    ui->stdOutTextEdit->append(stdOut);
    ui->stdErrorTextEdit->append(stdError);

To copy to clipboard, switch view to plain text mode 

When i check the message from "stdError" i get:

Failed to open terminal.TERM environment variable needs set.

Failed to open terminal.TERM environment variable needs set.

To copy to clipboard, switch view to plain text mode 

This is a simple command to delete files inside a folder.
Is the problem related to configuration in debian?