Compare 2 fields in 2 files


 
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# 1  
Compare 2 fields in 2 files

I am trying to compare two files (separted by a pipe) using 2 fields (field 1,3 from fileA and 1,2 from fileB) if the two files match i want the whole record of fileA adding the extra fields left from fileB.
1. A.txt
Code:
cat|floffy|12|anything|anythings
cat|kitty|15|lala|lalala
dog|bob|2|field4|field5
dog|izzy|14|something|somethings

2. B.txt
Code:
cat|1|locations 0|san jose
cat|12|locations 2,3|san jose
cat|15|locations 0,1,2,3|tampa
dog|1|locations 0|nevada
dog|2|locations 1|nevada
dog|8|locations 3|connecticut
dog|14|locations 1,2,3|connecticut
dog|15|locations 0,1,2,3|connecticut

and get C.txt out put
Code:
cat|floffy|12|anything|anythings|locations 2,3|san jose
cat|kitty|15|ala|alala|locations 0,1,2,3|tampa
dog|bob|2|field4|field5|locations 1|nevada
dog|izzy|14|something|somethings|locations 1,2,3|connecticut


Thanks.

---------- Post updated at 07:08 PM ---------- Previous update was at 06:27 PM ----------

If i write this code
Code:
awk -F\| 'NR==FNR{a[$1,$3]++;next} (a[$1,$2])' A.txt B.txt > C.txt

I only can see the lines with the same 2 fields but cannot have the result like out put.
May be we have to use paste A and C to get D.txt ?

Last edited by sabercats; 12-13-2012 at 09:06 PM..
# 2  
try:
Code:
awk -F"|" 'NR==FNR {a[$1$3]=$0; next} a[$1$2]{print a[$1$2],$3,$4}' OFS="|" A.txt B.txt

# 3  
I got the result only correct with last lines?
Code:
|locations 2,3|san joseanythings
|locations 0,1,2,3|tampa
|locations 1|nevadaeld5
dog|izzy|14|something|somethings|locations 1,2,3|connecticut

it should be
Code:
cat|floffy|12|anything|anythings|locations 2,3|san jose
cat|kitty|15|ala|alala|locations 0,1,2,3|tampa
dog|bob|2|field4|field5|locations 1|nevada
dog|izzy|14|something|somethings|locations 1,2,3|connecticut

# 4  
I really don't think i have Linux Ubuntu and cannot get the result i need. Any can find out the way to solve it? Thanks.
# 5  
Hi rdrtx1,
could you please also explain your code :
Code:
awk -F"|" 'NR==FNR {a[$1$3]=$0; next} a[$1$2]{print a[$1$2],$3,$4}' OFS="|" A.txt B.txt

I am new to awk and still trying to learn from the different problem posted here.
# 6  
awk

Hey,

Try this one,

Code:
 awk -F'|' -v OFS="|" 'FNR==NR{a[$1"^"$3]=$0;next;}{t=$1"^"$2;if(a[t]){sub(/\|/,"");print a[t],substr($0,index($0,"|")+1,length($0));}}' file1 file2

Cheers,
RangaSmilie
# 7  
Wow, it works. Thank you very much for your help rangarasan
 

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