文件系统操作函数：用于创建常规文件、目录和符号链接；复制和重命名文件；提供删除功能。
File system-manipulation functions: Meant to create regular files, directories, and symbolic links; copy and rename files; and provide for deletion.
只需将所有IS o映像文件复制到安装存储库中(或者创建它们的符号链接)，如清单10所示。
Just copy all the ISO image files (or create symbolic links for them) into the installation repository, as shown in Listing 10 below.
通常要复制卡片，并且将特殊的符号写到栏73到60上，以标明另一个版本。
Usually the CARDS were duplicated and special notations written on columns 73 to 60 to denote another version.
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