Inter-Process-Communication-IPC-/Pipes/Pipes_demo.c

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>

int main(int argc, char* argv[]) {
	
	int pfds[2];
	char buf[30];

	if (pipe(pfds) == -1) {
		perror("pipes");
		exit(1);
	}

	printf("writing to file descriptor #%d\n", pfds[1]);
	write(pfds[1], "test", 5);
	printf("reading from file descriptor #%d\n", pfds[0]);
	read(pfds[0], buf, 5);
	printf("read \"%s\"\n", buf);

	return 0;
}