两个或三个服务器采用相同的目录架构和邮件文件集，并开启所有服务器的集群复制功能（见图1）。
Two or three servers house an identical directory structure and set of mail files, and cluster replication is enabled across these servers (see figure 1).
尝试为写被只能读的一个文件，或哪一个实际上是一个目录开启。
Trying to open for writing a file which is read only, or which is actually a directory.
这个范例显示如何查询所指定目录树状结构中的所有档案、开启每个档案，然后检查档案的内容。
This example shows how to query over all the files in a specified directory tree, open each file, and inspect its contents.
同学可以双击视窗中的图示开启这些程序，而程序的预设目录即为同学的个人目录。
You should start these programs by double-clicking their ICONS in the window. Then, the default directory will be your home directory.
同学可以双击视窗中的图示开启这些程序，而程序的预设目录即为同学的个人目录。
You should start these programs by double-clicking their ICONS in the window. Then, the default directory will be your home directory.
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