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If a FILE command has been entered that contradicts some of the
HPFOPEN/FOPEN parameters for a file, which takes precedence? What
happens if some parameters are left out? The file system maintains a hierarchy
of overrides for just such situations (illustrated in
Figure 2-1 "File System Hierarchy of
Overrides"):
Figure 2-1 File System Hierarchy of Overrides
Since the physical characteristics of a file cannot be changed
after it has been created, it makes sense that the file label would
take precedence over all commands. Other determinants are effective
only when a new file is being created.
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NOTE: FILE commands and HPFOPEN/FOPEN calls cannot
alter physical characteristics of an existing file.
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Complete PDF![[File System Hierarchy of Overrides]](img/gfx3.gif)