显示写入目标系统日志 target log
因为可以显示系统活动，所以对日志文件的访问通常会受到限制，只有超级用户才可以访问。
Because system activity can be revealing, logs here are typically restricted and available to superusers only.
关于系统上典型的审计日志文件，参见清单1；它还显示了记录的追踪部分。
A typical audit log file on my system is shown in Listing 1; it shows the trail record, as well.
这时，您很有可能访问TrackOrderWeb页面，系统在这个页面上显示在处理定单期间发生的事件的日志。
At this point you will most likely visit the TrackOrder Web page, where the system will display a log of the events which transpired during the processing of the order.
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