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tar archives a symbolic link, it writes a
block to the archive naming the target of the link. In that way, the
tar archive is a faithful record of the file system contents.
`-h') is used with
tar archives the files
symbolic links point to, instead of
the links themselves.
When creating portable archives, use
`-h'): some systems do not support
symbolic links, and moreover, your distribution might be unusable if
it contains unresolved symbolic links.
When reading from an archive, the
tar to follow an already-existing symbolic
tar writes or reads a file named in the archive.
tar does not follow such a link, though it may
remove the link before writing a new file. See section Options Controlling the Overwriting of Existing Files.
`--dereference' option is unsafe if an untrusted user can
modify directories while
tar is running. See section Security.
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