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

#define GNUPLOT_PATH "/usr/bin/gnuplot"

int main()
{
        FILE *gp;

        gp = popen(GNUPLOT_PATH, "w");
        if(gp == NULL){
            fprintf(stderr, "Oops, I can't find %s.", GNUPLOT_PATH);
             exit(EXIT_FAILURE);
        }
        fprintf(gp, "cd '~/Desktop'\n load \"config\"\n");
          fflush(gp); /* On oublie pas le buffer. */
          getchar();
          pclose(gp);

exit(EXIT_SUCCESS);
}