Re: [WinMac] Film Bureau and Platforms
John Droggitis(johnd[at]cybernex.net)
Tue, 21 Sep 1999 15:29:50 +0000
Leonard Rosenthol wrote:
> What Dan said is 100% technically accurate, though not
> practically accurate - let me clarify.
>
> Tar, like ZIP, stores all files in a flat file structure. It
> relies on the fact that it stores (relative) PATHNAMES to maintain
> any true hierarchy that existed on the source device. Because of
> this limitation, it doesn't provide for archiving of directory
> attribute information (permissions, etc.) as a TRUE hierarchical
> archiver/backup program (StuffIt, Retrospect, etc.) does.
Nonsense. Tar does produce a single archive that contains file entries Each
entry contains a header that includes its pathname, statistics (including
ownership, permissions, creation and modification dates) and checksum for error
checking. Directory entries are similar to file entries, so those too include
ownership and permission info etc. This information is adequate for tar to
create an exact replica of the archived sources. Tar is not limited to relative
pathnames either, its archives can contain absolute or relative paths.
> >Tar is a very flexible and powerful command
>
> Tar is an outdated archiving format.
Tar is as outdated as winNT is modern. Here's a good tar reference:
http://www.gnu.org/manual/tar/index.html
--John
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