user/usr/bin/hello.c


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/*
 * The classic hello world program.
 * If you can run this successfully, you should high-five
 * everyone nearby. You can also shout loudly. People
 * will understand.
 */

#include <fcntl.h>
#include <unistd.h>

int main(int argc, char **argv)
{
    open("/dev/tty0", O_RDONLY, 0);
    open("/dev/tty0", O_WRONLY, 0);
    write(1, "Hello, world!\n", 14);
    return 0;
}