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Full Discussion: Difference between two huge .csv files
Top Forums Shell Programming and Scripting Difference between two huge .csv files Post 302711603 by Dimple on Sunday 7th of October 2012 08:00:54 AM
Old 10-07-2012
Difference between two huge .csv files
Hi all,

I need help on getting difference between 2 .csv files.
I have 2 large . csv files which has equal number of columns. I nned to compare them and get output in new file which will have difference olny.

E.g.
File1.csv
Code:
Name, Date, age,number 
Sakshi, 16-12-2011, 22, 56
Akash, 14-12-2011, 23, 76

File2.csv
Code:
Name,Date,age,number
Sakshi, 14-12-2011,22,56
Akash,18-12-2011,23,76

then output should be like
Code:
16-12-2011                      14-12-2011
14-12-2011                       18-12-2011

It's just an example. What I am trying to say is I should get only the values of columns where we have the difference. Not the whole line.
Assuming File will be in sorted order.
There can be m number of columns but for sure in both the files, we will get same columns. If values are different then those values should be given in output.
It can also work if we can get difference in comma separated file like
wherver values matches between 2 files we get blank
,16-12-2011,,
Hope I am able to explain the issue.
Last edited by Franklin52; 10-08-2012 at 04:07 AM.. Reason: Please use code tags for data and code samples
 

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