Please note that QProcess does not emulate a shell. This means that QProcess does not do any expansion of arguments: a '*' is passed as a '*' to the program and is not replaced by all the files, a '$HOME' is also passed literally and is not replaced by the environment variable HOME and the special characters for IO redirection ('>', '|', etc.) are also passed literally and do not have the special meaning as they have in a shell.

There is QByteStream or any Q*Stream class for those needs