If the pathname is a directory, then you can continue to expand each part of the pathname.
如果路径名是一个目录，您可以继续展开该路径名的每个部分。
An absolute pathname begins with the root directory and follows the tree branch by branch until the path to the desired directory or file is completed.
绝对路径名从根目录开始，通过一个又一个的分支，一直到你要去的目录或者文件为止。
By default, this is the current directory (the one designated by ". "pathname).
默认情况下，即是当前所在目录(一个由“。”指定的路径名)。
polydir is the absolute pathname of the directory to polyinstantiate.
polydir是要多实例化的目录的绝对路径名。
This directory has a parent and “grandparent” directory, as we’ll see later. And pwd shows the directory’s absolute pathname
我们在后面将会看到，这个目录有父和“祖父”目录。
Accept the default value for Pathname to the network-wide release directory, which should be the same as what had been set in the release area setup process.
接受Pathname的默认值，到广泛网络的释放地址，它应该与这个释放区域安装过程中所设定的是一样的。
Please check that the directory you entered contains a complete pathname, including drive letter or volume name and try again.
请检查您输入的目录是否包含完整的路径名，包括盘符或卷名，然后重试。
To save to another directory, use a full pathname for the filename.
为了保存另一个目录，请使用文件的完整路径名。
Thee kernel doesn't maintain the full pathname of the directory. Instead, the kernel keeps information about the directory, such as a pointer to the directory's v-node.
核心没有维护目录的全路径，相反，核心保持拉目录的信息，像指向目录的v -node的指针。
We can specify new current working directory either as a pathname or though an open file descriptor.
我们可以通过文件路径或打开文件的描述符来指定新的工作目录。
We can specify new current working directory either as a pathname or though an open file descriptor.
我们可以通过文件路径或打开文件的描述符来指定新的工作目录。
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