Unix Shell - Finding out if a script has been modified

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Author Finding out if a script has been modified
Helma

2007-08-28, 1:24 pm

Hello *,

I would like to find out if anyone has modified a script on one of the
Linux servers i administer. Is there a command that creates a sort of
hash, a sort of CRC number or equivalent of a shellscript?

(I know that these questions should be properly addressed with a
version control tool, but this isn't feasable in my situation.)

TIA,
Helma.

jellybean stonerfish

2007-08-28, 1:24 pm

On Tue, 28 Aug 2007 06:28:55 -0700, Helma wrote:

> Hello *,
>
> I would like to find out if anyone has modified a script on one of the
> Linux servers i administer. Is there a command that creates a sort of
> hash, a sort of CRC number or equivalent of a shellscript?
>
> (I know that these questions should be properly addressed with a
> version control tool, but this isn't feasable in my situation.)
>
> TIA,
> Helma.


md5sum shellscript

stonerfish
Scott McMillan

2007-08-28, 1:24 pm

On Tue, 28 Aug 2007 06:28:55 -0700, Helma <helma.vinke@hotmail.com>
wrote:

>Hello *,
>
>I would like to find out if anyone has modified a script on one of the
>Linux servers i administer. Is there a command that creates a sort of
>hash, a sort of CRC number or equivalent of a shellscript?
>
>(I know that these questions should be properly addressed with a
>version control tool, but this isn't feasable in my situation.)
>
>TIA,
>Helma.


I think sum is what you are looking for - man sum. Although I don't
know how you would use this after the fact, if you don't have original
scripts/sums to compare against...


Scott McMillan
Helma

2007-08-28, 1:24 pm

thanks for the answers - i'll see if i can use this.

how this helps me? Uhm... perhaps as a warranty seal ;-)

H.

Maxwell Lol

2007-08-28, 7:21 pm

Scott McMillan <smcmillan@twmi.rr.com> writes:

[vbcol=seagreen]
> I think sum is what you are looking for - man sum.



sum can be faked. Use md5sum. That uses a cryptograpic hash mechanism.
EXTREMLY hard to fake md5sum.
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