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WHAT is not working for your case?



What code then have you got?



The approach of these fora could be "Teach me to do it myself" ("Hilf mir, es selbst zu tun"; is a quote from Maria...

Inferring from lines 5 and 8, the division should be done by constant 2, not the line count per key. Under the assumption that field 8, embedded in field separators, is NOT matched anywhere else in...

How about awk 'NR==FNR{A[$2]=$3; B[$2]=$4; C[$2]=$5; next} $5 in A {$5 = $5 FS A[$5] FS B[$5] FS C[$5]} 1' FS=, OFS=, b.dat a.dat

It's YOUR logic! Except for the index corrections.

---------- Post updated at 11:44 ---------- Previous update was at 11:41 ----------

From file2, the first in input stream, identified by NR ==...