my $command = qq{syscall $interp};
run_command_string($command);

sub run_command_string {
    my $command = shift;
    $log->info("attempt to run the following command:");
    $log->info("$command");
    system $command;

    if ( $? == -1 ) {
        $log->error("failed to execute: $!\n");
    }
    elsif ( $? & 127 ) {
        $log->error("child died with signal $? $!");
    }
    else {
        $log->info("child exited with value $?");
    }
}