memory (de)allocation in a command line Cocoa application

Hi,

I am trying to learn to program in Objective-C and Cocoa, still getting
the 
basics though.

What I want to know about is memory management.

If I have the following program :-

int main( int argc, char *argv[])
{
    NSFileHandle *stdout = [NSFileHandle fileHandleWithStandardOutput];

    NSString *test = [NSString stringWithCString: argv[0]];

    Char *cstring = [test UTF8String];

    [stdout writeData: [NSData dataWithBytes: cstring length: strlen( 
cstring)];

    [stdout fileClose];

    [test autorelease]

    return 0;
}

I am getting messages saying "autoreleased with no pool in place".

How do I go about creating a pool if thats what I need to do ?

Otherwise how do I do the memory management.

Many thanks in advance,

Aaron