The oltpqc code expects a positional parameter on the command line for the alarm threshold.
oltpqc 代码需要从命令行中提供一个位置参数，用于表示警报阈值。
2
Since this program can only display messages or run commands, it refuses to create an alarm that has neither a message nor a command.
因为此程序只能显示消息或运行命令，所以它拒绝创建既不是消息也不是命令的警报。
3
With that in mind, it would be nice to be able to create arbitrary alarm events from a command-line program, which would execute programs or display messages.