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Joining two files

 
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Top Forums UNIX for Dummies Questions & Answers Joining two files
# 8  
Old 08-29-2011
Quote:
Originally Posted by rangarasan
Hi,

just try this,

Code:
nawk 'BEGIN{FS=",";}{t=0;while(getline line<"File2"){split(line,a,",");if ( $2 == a[1] ){print $1,$2,a[2];t=t+a[2];if ( t == $3 ){break;}}}}' File1 >File3

Where File1 and File2 are your input files and File3 is your output file.


Cheers,
RangaSmilie
But for the below set of data, the above code doesn't produce correct results:


file1
-----------
11635 ,1974-07-17 00:00:00,20311905,250
11635B ,1974-08-07 00:00:00,20311905,100
11635A ,1974-07-22 00:00:00,20311905,250
11635C ,1974-09-24 00:00:00,20311905,500
file2
----------
20311905,88419,1,7,100
20311905,602135,3,7,100
20311905,610283,5,7,100
20311905,664254,7,56,150
20311905,85106,0,7,100
20311905,90733,2,7,100
20311905,604715,4,7,150
20311905,652707,6,15,150
20311905,665416,8,59,150

the code i have used is :
Code:
nawk 'BEGIN{FS=",";}{t=0;while(getline line<"file2"){split(line,a,",");if ( $3 == a[1] ){print $1,$2,$3,a[2],a[3],a[4],a[5];t=t+a[5];if ( t == $4 ){break;}}}}' file1 >file3

The 3rd field in file1 and 1st field in file2 are the keys

thanks
# 9  
Old 09-06-2011
How to make the script to work for the above data?

Thanks
# 10  
Old 09-06-2011
Post a sample of the input and the expected output...
# 11  
Old 09-06-2011
input:
-----
Code:
file1
-----------
11635 ,1974-07-17 00:00:00,20311905,250
11635B ,1974-08-07 00:00:00,20311905,100
11635A ,1974-07-22 00:00:00,20311905,250
11635C ,1974-09-24 00:00:00,20311905,500
file2
----------
20311905,88419,1,7,100
20311905,602135,3,7,100
20311905,610283,5,7,100
20311905,664254,7,56,150
20311905,85106,0,7,100
20311905,90733,2,7,100
20311905,604715,4,7,150
20311905,652707,6,15,150
20311905,665416,8,59,150

Code:
Required output:
11635B,20311905,88419,1,7,100
 11635,20311905,602135,3,7,100
 11635A,20311905,610283,5,7,100
 11635,20311905,664254,7,56,150
 11635C,20311905,85106,0,7,100
 11635C,20311905,90733,2,7,100
 11635A,20311905,604715,4,7,150
 11635C,20311905,652707,6,15,150
 11635C,20311905,665416,8,59,150

The 3rd field in file1 and 1st field in file2 are the keys..

in file1 the value corresponds to 11635 is 250.
In the result if you sum up all the values of 11635 is 100+150 =250.

Similarly all the values should be equal.

Please let me know if you need any more info.

Thanks
 
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