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#1
05-09-2005
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join on multiple fields
Is it possible to do a join on multiple fields of two files? I am trying to do something like join -t, -1 2,3 -2 2,3 -o 2.1,2.2,2.3,1.3 filea fileb
I want the join to be on columns 2 and 3 of filea and columns 2 and 3 of fileb. What is hapenning is that the second file that I want to do the join on is being ignored. 
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#2
05-10-2005
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You can use awk as,
awk '{ getline fa < "filea"; split(fa,a," "); print a[2]a[3]$2$3 }' fileb It will cat 2,3 fileds of filea and 2&3 of fileb. HTH.
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