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1.2 Improving hello_world.pike

Typing pike hello_world.pike to run our program may seem a bit unpractical. Fortunately, Unix provides us with a way of automating this somewhat. If we modify hello_world.pike to look like this:


int main()
    write("hello world\n");
    return 0;
And then we tell UNIX that hello_world.pike is executable so we can run hello_world.pike without having to bother with running Pike:

	$ chmod +x hello_world.pike
	$ ./hello_world.pike
	hello world
N.B.: The hash bang (#!) must be first in the file, not even whitespace is allowed to precede it! The file name after the hash bang must also be the complete file name to the Pike binary, and it may not exceed 30 characters.

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