Existentialism Is Another Name For Naturalism. Can You Discuss It?

I will go against to this statement. Existentialism has some other standing. They believe that, believe in what exists .Here and now principle is much highlighted in their work. They believe in self and think every one is the lord of himself. He must decide whatever he wants and much else. While the naturalists believe in the natural process that has been evolved over the period of centuries. Other than this they believe that the only who survives has the features of struggle.