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Search data file2 for entries in data file1

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# 8  
Old 03-30-2017
You're close. You can use two arrays instead of just one... Try:
Code:
awk '
FNR == NR {
	v[$1] = $4
	v2[$1] = $7
	next
}
$1 in v {
	print $0, v[$1], v2[$1]
}' OFS="\t" file2 file1

Or, since both saved fields from file2 are being printed next to each other in the output, you can do it with one array indexed just by the contents of field 1:
Code:
awk '
FNR == NR {
	v[$1] = $4 OFS $7
	next
}
$1 in v {
	print $0, v[$1]
}' OFS="\t" file2 file1

In either case, the index (indices) on the array (arrays) has (have) to just be the field that has a common value in both input files.
Last edited by Don Cragun; 03-30-2017 at 03:12 AM.. Reason: Add alternative using a single array.
This User Gave Thanks to Don Cragun For This Post:
palex
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