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@@ -11182,8 +11182,12 @@ Done
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@node Reproducibility
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@section Making @command{tar} Archives More Reproducible
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-Sometimes it is important for an archive to be reproducible,
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-so that one can be easily verify it to have been derived solely from its input.
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+Sometimes it is important for an archive to be @dfn{reproducible},
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+so that one can be easily verify it to have been derived solely from
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+its input. We call an archive reproducible, if an archive
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+created from the same set of input files with the same command line
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+options is byte-to-byte equivalent to the original one.
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+
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However, two archives created by @GNUTAR{} from two sets of input
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files normally might differ even if the input files have the same
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contents and @GNUTAR{} was invoked the same way on both sets of input.
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Sergey Poznyakoff