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Re: hashing

• To: "Eric Hanson" <eric@a...>
• Subject: Re: hashing
• From: "Jeff Greif" <jgreif@a...>
• Date: Thu, 29 Apr 2004 13:28:24 -0700
• Cc: <xml-dev@l...>
• References: <20040429195817.E62427@a...>

md5sum is a cryptographic hash using the MD5 algorithm.  It's not fast, but
it will do what you want.  It's available in linux, in cygwin, and probably
other ways.

In a reasonable command shell, where unix commands are available along with
md5sum,

md5sum *.xml | sort

will put the duplicate files on neighboring lines.

Jeff

----- Original Message ----- 
From: "Eric Hanson" <eric@a...>
To: <xml-dev@l...>
Sent: Thursday, April 29, 2004 12:58 PM
Subject:  hashing


> I have a large collection of XML documents, and want to find and
> group any duplicates.  The obvious but slow way of doing this is
> to just compare them all to each other.  Is there a better
> approach?
>
> Particularly, is there any APIs or standards for "hashing" a
> document so that duplicates could be identified in a similar way
> to what you'd do with a hash table?

• References:
  • hashing
    • From: Eric Hanson <eric@a...>

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