October 2014 Archive


Implementing Directories
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Implementing Directories

Before a file can be read, it must be opened. When a file is opened, the operating system uses the path name supplied by the user to locate the directory entry. The directory entry provides the information required to find the disk blocks. Depending on the system, this information

Shared Files
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Shared Files

When various users are working together on a project, they often need to share files. As a result, it is often convenient for a shared file to appear simultaneously in different directories belonging to different users. Figure 1 shows the file system of DIRECTORIES Figure 2, again,

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