顾名思义，CDPATH列出了搜索命名目录的目录列表。
As its name implies, CDPATH enumerates a list of directories to search for a named directory.
目前(顾名思义)只支持活动目录。
Currently (as its name implies) only support Active Directory.
d目录中包含了几个常见的启动脚本，这些脚本的名字都是顾名思义的
The rc.d directories contain a few of the usual types of startup scripts with readable names
d目录中包含了几个常见的启动脚本，这些脚本的名字都是顾名思义的
The rc.d directories contain a few of the usual types of startup scripts with readable names
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