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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 302663165 by jacobs.smith on Wednesday 27th of June 2012 04:04:12 PM
Old 06-27-2012
Hi tukuyomi,

Please pardon me if I wasn't clear.

Here you go.

1. I want to match the first four columns of my file1 to the first four columns of file2, and if there is any match, I want the matching records from input file2 whose first four columns match to the input file1. Also, I want the other records from input file2, even though there is no match to input file 1. This is the reason why you are seeing output == cat input file2.

2. My four columns are

Code:
abcd 123 198 xyz1:0909090-0909091

These are separated by spaces.

3. Also, I would really appreciate if you can write into another file, the unmatched records from input file1 which would contain the following record

Code:
prem 9 112 xyz5:97-1134

 

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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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