lab6-shelllab/tsh.c
/*
 * sigquit_handler - The driver program can gracefully terminate the
 *    child shell by sending it a SIGQUIT signal.
 */
The driver program can gracefully terminate the
child shell by sending it a SIGQUIT signal.
The driver program can gracefully terminate the child shell by sending it a SIGQUIT signal .
void sigquit_handler(int sig) 
{
    printf("Terminating after receipt of SIGQUIT signal\n");
    exit(1);
}
void sigquit_handler ( int sig ) { printf ( " \n " ) ; exit ( 1 ) ; }
sigquit_handler - The driver program can gracefully terminate the
    child shell by sending it a SIGQUIT signal.
sigquit_handler - The driver program can gracefully terminate the child shell by sending it a SIGQUIT signal .