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Full Discussion: Match tab-delimited files based on key
Top Forums UNIX for Beginners Questions & Answers Match tab-delimited files based on key Post 303018253 by vgersh99 on Friday 1st of June 2018 09:31:53 AM
Old 06-01-2018
you might/will run out of the opened file descriptors.
Here's a slight variation on the theme:
Code:
awk '
FNR==NR         {f21[$1]=$3
                 f22[$2]=$3
                 next
                }
FNR==1        { if(fout) close(fout); fout=(FILENAME ".pruned") }
$1 in f21       { print $0, f21[$1] > fout; next }
$1 in f22       { print $0, f22[$1] > fout }
' FILE2.txt FILE1*.tab

This User Gave Thanks to vgersh99 For This Post:
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pdiff

PDIFF(1)								FSF								  PDIFF(1)

NAME

       pdiff - produce a pretty comparison between files

SYNOPSIS

       pdiff FILE1 FILE2 [-- A2PS-OPTIONS...]

DESCRIPTION

       Pretty print the differences between FILE1 and FILE2.

OPTIONS

       -h, --help
	      display this help and exit

       -v, --version
	      display version information and exit

       -q, --quiet
	      don't print informational messages

       -l, --lines
	      search for line differences (`diff')

       -w, --words
	      search for word differences (`wdiff')

       -o, --output=FILE
	      save the output in FILE

       Options for a2ps are given after `--', for instance

	      $ pdiff COPYING COPYING.LIB -- -Pdisplay

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SEE ALSO

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

	      info pdiff

       should give you access to the complete manual.

pdiff 0.4 (GNU a2ps 4.14)					    March 2014								  PDIFF(1)
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