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Full Discussion: Compare 2 csv files in ksh and o/p the difference in a new csv file
Top Forums Shell Programming and Scripting Compare 2 csv files in ksh and o/p the difference in a new csv file Post 302780115 by Naresh101 on Thursday 14th of March 2013 12:51:30 AM
Old 03-14-2013
Compare 2 csv files in ksh and o/p the difference in a new csv file
(say) I have 2 csv files - file1.csv & file2.csv as mentioned below:
file1.csv
ID,version,cost
1000,1,30
2000,2,40
3000,3,50
4000,4,60

file2.csv
ID,version,cost
1000,1,30
2000,2,45
3000,4,55
6000,5,70
The expected o/p is a new csv file say - file3.csv should contain the details of IDs which are present in both the files but with some of the data related to it being different (here version and cost) - as shown below.



Expected o/p file - file3.csv

ID,field,old,new
2000,cost,40,45
3000,version,3,4
3000,cost,50,55
I need a unix ksh script for doing this. Please help me out.
Last edited by Naresh101; 03-14-2013 at 02:04 AM..
 

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csv2rec

CSV2REC(1)							   User Commands							CSV2REC(1)

NAME

       csv2rec - csv to rec converter

SYNOPSIS

       csv2rec [OPTIONS]... [CSV_FILE]

DESCRIPTION

       Convert csv data into rec data.

       -t, --type=TYPE
	      type name for the converted records; if this parameter is ommited then no type is used.

       -s, --strict
	      be strict parsing the csv file.

       -e, --omit-empty
	      omit empty fields.

       --help print a help message and exit.

       --version
	      show version and exit.

AUTHOR

       Written by Jose E. Marchesi.

REPORTING BUGS

       Report bugs to: bug-recutils@gnu.org
       GNU recutils home page: <http://www.gnu.org/software/recutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>

COPYRIGHT

       Copyright (C) 2010, 2011, 2012 Jose E. Marchesi.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       The  full  documentation  for  csv2rec  is maintained as a Texinfo manual.  If the info and csv2rec programs are properly installed at your
       site, the command

	      info csv2rec

       should give you access to the complete manual.

csv2rec 1.4.93							   January 2012 							CSV2REC(1)
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