File Descriptor

An Example Program Using File System Calls
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An Example Program Using File System Calls

In this section we will consider a simple UNIX program that copies one file from its source file to a destination file. It is listed in Figure 1. The program has minimal functionality and even worse error reporting, but it gives a reasonable idea of how some of the system calls related to

Virtual File Systems
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Virtual File Systems

Several different file systems are in use - often on the same computer - even for the same operating system. A Windows system may have a main NTFS file system, but also a legacy FAT-32 or FAT-16 drive or partition that includes old, but still needed, data and occasionally a

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