/*
 * Run the 'ls' command and print the output to stdout.
 * 
 * Compile with 
 * 		gcc -Wall pipe.c -o pipe
 * 
 * 
 * Mithenks <mithenks@siena.linux.it>
 * 
 */
#include <stdio.h>
#include <stdlib.h>

int main() {
	
	FILE *pipe;
	char buffer[1024];
	
	if ( (pipe = popen("ls","r") ) < 0 ) {
		perror("popen(): ");
		exit(-1);
	}
	
	
	fread(buffer,sizeof(buffer),1,pipe);
	printf("Output:\n%s\n",buffer);
	
	pclose(pipe);
	
	return 0;
}