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awk NR==FNR compare 2 files produce a 3rd

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# 8  
Old 03-17-2009
franklin i have made a mistake before,

the format of the files is

file 1

a, b, c

file 2

a, b, d

file 3 should have

customer, account, c, d
Last edited by borderblaster; 03-18-2009 at 10:03 AM..
# 9  
Old 03-17-2009
Try this:

Code:
awk -F, 'NR==FNR{a[$1$2]=$3;next}a[$1$2]{$4=a[$1$2];print}' OFS="," file1 file2

Regards
# 10  
Old 03-17-2009
i franklin thanks for your help on this it is coming together.

problem now is that if file1 contains more than 1 stbid for the same customer and account pair only the last stbid is written to file 3

e.g.


Is it possible to have the packs and stbids appended on the same line?
Last edited by borderblaster; 03-18-2009 at 10:01 AM..
# 11  
Old 03-18-2009
Something like this?

Code:
awk -F, 'NR==FNR{a[$1","$2]=a[$1","$2]?a[$1","$2]","$3:$3;next}
{b[$1","$2]=b[$1","$2]?b[$1","$2]","$3:$3}
END{for(i in b)print i "," b[i] "," a[i]}
' OFS="," file2 file1

Regards
# 12  
Old 03-18-2009
franklin thats looks like it is doing the business. Thank you so much! your a genious with awk
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