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Full Discussion: Compare 2 csv files by columns, then extract certain columns of matcing rows
Top Forums Shell Programming and Scripting Compare 2 csv files by columns, then extract certain columns of matcing rows Post 302904239 by Akshay Hegde on Tuesday 3rd of June 2014 04:41:27 AM
Old 06-03-2014
There is no match except header in current example try this

Code:
awk -F, '
	FNR==NR{
		# Read file3

		# Loop through fields...
		  for(i=1;i<=NF;i++)
		   {
			if(i < 4 || ( i > 6 && i < 12 ) || i>12)
			{
				# Array A with index key offer,category,brand,company
                                key = $12 FS $4 FS $6 FS $5

				# All column except 12,4,6,5 are array element with OFS being comma
				A[key] = A[key] ? A[key] OFS $i : $i	
			}
		   }
			next
	        }
	
	# read file4, if exact match print
	(($1 FS $2 FS $6 FS $4) in A) \
		{ 
			print $0, A[$1 FS $2 FS $6 FS $4] 
		}
      ' OFS="," file3 file4

Last edited by Akshay Hegde; 06-03-2014 at 05:53 AM..
This User Gave Thanks to Akshay Hegde For This Post:
bkane3
 

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set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

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       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

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       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)
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