prova ad usare popen

codice:

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

int main(void) {

    FILE *in;
    extern FILE *popen();

    if( !( in = popen("mv old_dir new_dir", "r") ) ) {
        exit(1);
    }

    pclose(in);
 
    return (0) ;

}