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[Bug manual/16073] Improve the manual on symbolic links


https://sourceware.org/bugzilla/show_bug.cgi?id=16073

--- Comment #3 from Fabrice Bauzac <libnoon at gmail dot com> ---
There are cases where the symlink() system call is used not for linking to
another file, but for the fact that it is a simple way of atomically writing an
arbitrary string into the filesystem.  This is useful for some synchronization
use cases I have worked on.  And that is why I would prefer the term "CONTENTS"
or "TARGET" rather than "FILENAME" because it can really be an arbitrary string
that will never point to an actual file.

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