How to analyze file hashing


 
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# 1  
Old 10-18-2010
How to analyze file hashing

What command should I use to analyze file hashing of fixed flat files.
How much work does it take for multiple flat files.
# 2  
Old 10-18-2010
Hashing is a complicated technique for getting a checksum or integer from a string or whole file. The checksum of a file can show it was probably not modified since leavinga trusted source. The integer can be used to pick (modulo bucket count) a bucket for a random lookup, a hash mapping.

Are you in file verification or high speed lookup?

---------- Post updated at 04:26 PM ---------- Previous update was at 04:25 PM ----------

Or command location in the shell?

hash (Unix) - Wikipedia, the free encyclopedia
# 3  
Old 10-18-2010
high speed lookup

we send multiple fixed flat files to a data analysis team..and want to hash those. I have no idea how to do it and how much effort is required for it. I most probably think it is for high speed lookup. Let me know if this information helps.

Thanks,

jbjoat
# 4  
Old 10-18-2010
@jbjoat
We do not understand your post.

The computer technical term "to hash" has many meanings. One major meaning relates to data encryption, another relates to data validation, another relates to data destruction.

In the context of your environment, please explain "to hash" in plain English and give one clear example.
 
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