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bug#7739: bug in md5sum ?
From: |
Bob Proulx |
Subject: |
bug#7739: bug in md5sum ? |
Date: |
Sat, 9 Apr 2011 21:40:43 -0600 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Bob Proulx wrote:
> Arnaud TARDY wrote:
> > [...] but..md5sum are different between Linux and Windows for a same
> > word!! Exemple
> >
> > Linux: echo 'somme' | md5sum
> > result: cc72185f414a55738ee4460aa82802b3
>
> Correct. Don't forget that echo adds a newline (\n) to the end of the
> line.
>
> $ echo 'somme' | md5sum
> cc72185f414a55738ee4460aa82802b3 -
>
> $ echo 'somme' | od -tx1 -c
> 0000000 73 6f 6d 6d 65 0a
> s o m m e \n
> 0000006
>
> > windows somme
> > Result: 3CE6E7F240E6B94C36FD0DDA70C213E9
>
> That would be the result of md5sum on that word without a newline on
> the end. You can see this by using printf instead of echo. Printf
> does not add a newline on the end of the line by default unless
> directed by having a newline (\n) at the end of the string.
>
> $ printf 'somme' | md5sum
> 3ce6e7f240e6b94c36fd0dda70c213e9 -
>
> $ printf 'somme' | od -tx1 -c
> 0000000 73 6f 6d 6d 65
> s o m m e
> 0000005
>
> $ printf 'somme\n' | md5sum
> cc72185f414a55738ee4460aa82802b3 -
>
> $ printf 'somme\n' | od -tx1 -c
> 0000000 73 6f 6d 6d 65 0a
> s o m m e \n
> 0000006
>
> As such I don't think this is a bug but a misunderstanding of the
> effects of the newline at the end of the line.
There were several messages and suggestions in response to your bug
report. It has been several months without a response from you. I
can only assume that the problem has been resolved. Therefore I am
closing this bug report.
Thanks for helping to improve GNU!
Bob
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