#!/usr/local/bin/perl
    system("some_long_running_shell_command");
    some_other_stuff();

##</code><code>##

    #!/usr/local/bin/perl
    for (1..10) {
        system("some_long_running_shell_command");
    }
    some_other_stuff();

##</code><code>##

    #!/usr/local/bin/perl
    system("sleep 10");
    sleep 10;

##</code><code>##

    #!/usr/local/bin/perl
    `sleep 10`;
    sleep 10;

##</code><code>##

#ifndef PERL_MICRO
   rsignal_save(SIGINT,  (Sighandler_t) SIG_IGN, &ihand);
   rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
#endif