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Full Discussion: Compare multiple files with multiple number of columns
Top Forums Shell Programming and Scripting Compare multiple files with multiple number of columns Post 302663143 by jacobs.smith on Wednesday 27th of June 2012 03:40:09 PM
Old 06-27-2012
Quote:
Originally Posted by tukuyomi
Code:
~/unix.com$ awk -F':' 'NR==FNR{A[$1]=$0;next}$1 in A' file1 file2

Another shorter one:
Code:
~/unix.com$ awk -F':' 'A[$1]++' file1 file2

BTW you meant this as your output file?
Code:
abcd 123 198 xyz1:0909090-0909091 -9.122 0
ghij 234 999 xyz2:987654:987655 -10.87090909 5
kilo 7890 7990 xyz3:12345-12357 -8.7666 0

Hi tukuyomi,

I want to compare the first four columns of each file against each file and not just the first column.

Thanks for the current solution.

Do you think, there is another way to do it by matching the first four columns?
 

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LEARN ABOUT MINIX

paste

PASTE(1)						      General Commands Manual							  PASTE(1)

NAME

       paste - paste multiple files together

SYNOPSIS

       paste [-s] [-d list] file...

OPTIONS

       -d     Set delimiter used to separate columns to list.

       -s     Print files sequentially, file k on line k.

EXAMPLES

       paste file1 file2   # Print file1 in col 1, file2 in col 2

       paste -s f1 f2	   # Print f1 on line 1 and f2 on line 2

       paste -d : file1 file2
			   # Print the lines separated by a colon

DESCRIPTION

       Paste  concatenates  corresponding  lines of the given input files and writes them to standard output. The lines of the different files are
       separated by the delimiters given with the option -s. If no list is given, a tab is substituted for every linefeed, except  the	last  one.
       If  end-of-file	is hit on an input file, subsequent lines are empty.  Suppose a set of k files each has one word per line.  Then the paste
       output will have k columns, with the contents of file j in column j.  If the -s flag is given, then the first file is on line 1, the second
       file on line 2, etc.  In effect, -s turns the output sideways.

       If  a list of delimiters is given, they are used in turn.  The C escape sequences 
, 	, \, and  are used for linefeed, tab, backslash,
       and the null string, respectively.

																	  PASTE(1)
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