We covered globbing as this kind of filename expansion trick in the shell scripting and tools.

我们在 shell 脚本和工具中介绍了通配符这种件名扩展巧。

If we want to add a file, remove a file, change a filename, or similar, we have to update the information in the Directory File.

我们要添加件、删除件、更改件名或类操作，我们必须更新目录件中的信息。

Here since the file has been fed through the script, and we don't know it beforehand, we have to substitute the variable of the filename.

由于件通过脚本提供的，而我们事先并不知道，因此我们必须替换件名变量。

Yet someone had taken the time to alter the filename to read " HOPITAL SB. jpg" ; according to the timestamp, the photograph had in fact been taken a month-and-a-half prior.

然而，有人将件名改为 “HOPITAL SB. jpg”；根据时间戳，这张照片实际上在一个半月前拍摄的。