Using Command Line Arguments in Symbian

Most Symbian programs are launched through a graphical shell rather than through a command-line.
The common exceptions are .exes on the PC platform, which can be run from a Windows command prompt.
For .exe programs, control is received through the E32Main() function, which, however does not supply arguments. Instead, access to arguments is provided by CCommandLineArguments
Conventional C and C++ programs receive their arguments from main(int argc, char* argv[]).
On Symbian OS, programs are invoked through an E32Main() function taking no arguments.
For a program that is launched as a new process, the arguments are available as part of the process command line and may be obtained in full using code such as
RProcess me;
TPtrC program=me.FileName();
TPtrC args=me.CommandLine();
However, the arguments are in a raw form. For convenience, the CCommandLineArguments class provides functions to access the program name as argument 0, and each command-line argument as argument 1, 2 etc.
Arguments beginning with a quote may contain blanks and doubled quotes.
Arguments not beginning with a quote are terminated by a blank.

void ReadAndWriteArgsL()
   {
   console=Console::NewL(_L("Command-line arguments reader test"), TSize(KConsFullScreen, KConsFullScreen));
   CleanupStack::PushL( console );
   //Create CommandLine Arguments and read it.
   CCommandLineArguments* args=CCommandLineArguments::NewLC();
   for (TInt i=0; i<args->Count(); i++)
      {
      TPtrC argumentPrt(args->Arg(i));
      console->Printf(_L("Arg %d == %S\n"), i, &argumentPrt);
      }
   CleanupStack::PopAndDestroy(2);
   }

GLDEF_C TInt E32Main()
    {
   __UHEAP_MARK; // mark heap state
   CTrapCleanup* cleanup=CTrapCleanup::New();
   TRAPD(error, ReadAndWriteArgsL());
   __ASSERT_ALWAYS(!error, User::Invariant());
   delete cleanup;
   __UHEAP_MARKEND;
   return 0;
    }


If Application Name is TestCmdArgs.exe, launch it as TestCmdArgs.exe Nokia India Pvt Ltd from command prompt
And the output will be

Arg 0 == TestCmdArgs.exe
Arg 1 == Nokia
Arg 2 == India
Arg 3 == Pvt
Arg 4 == Ltd

Regards
Girish