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awk script required to compare two files

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# 8  
Old 03-21-2011
awk file comparison - only 512 lines getting processed
Hi,

Thanks for all your suggestion.

And the below executes and gives output only for 512 lines.

I am having files around 8000 lines.

Is anything i need to change in script .

Thank you,
K.Vasanth
# 9  
Old 04-01-2011
If file2 has unmatching ID's print as blank
Hi,

Thanks for the replies.

Few more doubts raised, like file1 col3, does not matches with file2 col2, then the output must contain file2 as output with blank columns .

Eg:

Code:
file1:
No;age;id;name
1;24;37h;name1
2;22;67e;name2
4;48;9r;name3
6;67;9i8;name4

file2:
exp;id;pos
23;9r;hr
15;67e;tec
16;u67;thi
18;  ;iol 


Expected new file output:

No;age;id;name;exp;pos
4;28;9r;name3;23;hr
2;24;37h;name1;15;tec
  ;16;u67;         ;    ;thi
  ;18;     ;         ;    ;iol

Thanks
Vasanth
# 10  
Old 04-01-2011
Code:
 awk -F";" 'NR==FNR{a[$3]=$0;next}{if(a[$2]){print a[$2],$1,$3}else{print " ",$1,$2," "," ",$3}}' OFS=";" file1 file2
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