Re: Bug diff: no difference between 0 byte files and no files.

[Andreas Schwab]

"J.C. Pizarro" <address@hidden> writes:

> Hi, diff v2.8.1 and v2.8.7 ignore 0 byte files, and it's a bug.
>
> The program diff doesn't see the difference between 0 byte file and no file.
>
>   mkdir dir1 dir2 2> /dev/null ; cat /dev/null > dir1/empty.out ; \
>   tree dir1 dir2 ; echo "Differences between dir1 and dir2 from diff:" ; \
>   diff -Nduar dir1 dir2 ; rm -f dir1/empty.out ; rmdir dir1 dir2

Not a bug:

  -N  --new-file  Treat absent files as empty.

Andreas.

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Andreas Schwab, SuSE Labs, address@hidden
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