#include        <stdio.h>
#include        <stdlib.h>
#include        <unistd.h>
#include        <fcntl.h>
#define CMD "wc -l $PWD"
main (int argc, char * argv [ ] )
{ int fd, i=2, nb1,status;
  char buf [5];
        if ( fork ()==0) {
             ++i; exit(0);}
       else  {if (execlp ( CMD,CMD,0) ==-1)
              {--i;  wait ( &status) ;
                 printf("Stoinostta na i= %d\n",i);
               }
              else printf("Stoinostta na i= %d\n",i);}
}