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Full Discussion: Reconciling two CSV files using shell scripting
Top Forums UNIX for Beginners Questions & Answers Reconciling two CSV files using shell scripting Post 303041039 by hustler on Tuesday 12th of November 2019 04:26:40 PM
Old 11-12-2019
Reconciling two CSV files using shell scripting
I have two CSV files file1, file2 as below

Code:
File 1:
Key, Value1, Value2, Value3, Value4,......value
A,50,100,50,40,....,100

File 2:
Key, value1,Value2,Value3,Value 4 so on...
A,50,80,45,50.....

Now, I want to check if key from file 1 is present in file 2 or not if present I want to crate new file with following headers and data

Code:
Key, diff columns, f1_value1,f2_value1,value1_diff, f1_value2,f2_value2, value2_diff......
A,"Value2,Value3,Value4",50,50,0,100,80,20,50,45,5 and so on.

I have file with more 50k lines and around 60 columns...

Can someone help on suggesting how we can achieve this... I am new to shell.
 

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LEARN ABOUT SUSE

lzdiff

XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME

       xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files

SYNOPSIS

       xzcmp [cmp_options] file1 [file2]
       xzdiff [diff_options] file1 [file2]
       lzcmp [cmp_options] file1 [file2]
       lzdiff [diff_options] file1 [file2]

DESCRIPTION

       xzcmp  and  xdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options specified are passed
       directly to cmp or diff.  If only one file is specified, then the files compared are file1 (which must have a suffix of	a  supported  com-
       pression  format)  and  file1 from which the compression format suffix has been stripped.  If two files are specified, then they are uncom-
       pressed if necessary and fed to cmp(1) or diff(1).  The exit status from cmp or diff is preserved.

       The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.

SEE ALSO

       cmp(1), diff(1), xz(1), gzip(1), bzip2(1), zdiff(1)

BUGS

       Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.

Tukaani 							    2009-07-05								 XZDIFF(1)
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