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Top Forums Shell Programming and Scripting Remove all instances of duplicate records from the file Post 302150689 by radoulov on Wednesday 12th of December 2007 06:50:46 AM
Old 12-12-2007
Another sort/Awk solution
(if your files are not already sorted as the samples you posted):

Code:
sort -t\| -k1,2 file1 file2|awk '{
	x[$1,$2]++
	y[NR] = $0
} END {
	for (i = 1; i <= NR; i++)
		print y[i] > ((x[substr(y[i],1,5)] > 1) ? "file3" : "file4")
}' SUBSEP="|" FS="|"

Use nawk or /usr/xpg4/bin/awk on Solaris.

P.S. For variable column width: you should not use substr, but split for example:

Code:
sort -t\| -k1,2 file1 file2|awk '{
	x[$1,$2]++
	y[NR] = $0
} END {
	for (i = 1; i <= NR; i++)
		{
			tmp = y[i]
			split(tmp,z)
			print tmp > ((x[z[1],z[2]] > 1) ? "file3" : "file4")
	}
}' SUBSEP="|" FS="|"


Last edited by radoulov; 12-12-2007 at 08:16 AM..
 

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DIFF3(1)						      General Commands Manual							  DIFF3(1)

NAME
diff3 - 3-way differential file comparison SYNOPSIS
diff3 [ -ex3 ] file1 file2 file3 DESCRIPTION
Diff3 compares three versions of a file, and publishes disagreeing ranges of text flagged with these codes: ==== all three files differ ====1 file1 is different ====2 file2 is different ====3 file3 is different The type of change suffered in converting a given range of a given file to some other is indicated in one of these ways: f : n1 a Text is to be appended after line number n1 in file f, where f = 1, 2, or 3. f : n1 , n2 c Text is to be changed in the range line n1 to line n2. If n1 = n2, the range may be abbreviated to n1. The original contents of the range follows immediately after a c indication. When the contents of two files are identical, the contents of the lower-numbered file is suppressed. Under the -e option, diff3 publishes a script for the editor ed that will incorporate into file1 all changes between file2 and file3, i.e. the changes that normally would be flagged ==== and ====3. Option -x (-3) produces a script to incorporate only changes flagged ==== (====3). The following command will apply the resulting script to `file1'. (cat script; echo '1,$p') | ed - file1 FILES
/tmp/d3????? /usr/lib/diff3 SEE ALSO
diff(1) BUGS
Text lines that consist of a single `.' will defeat -e. Files longer than 64K bytes won't work. DIFF3(1)
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