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How to print the output in correct order?

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# 1  
Old 06-20-2013
How to print the output in correct order?
Hi,

while using following awk commend I’m getting confused,
The output is not like as the row present in input files, can anyone explain and tell me how to print in the order like in input.

Code:
value=$(awk 'FNR>1 && NR==FNR{a[$2]=$4;next} a[$2]{sum[$2]+=$4} END {for(i in sum){printf i"\t"sum[i]/2"@@";}}' file1.tsv file2.tsv)
echo $value > file.tsv
sed -i 's|@@|\n|g' file.tsv


File1.tsv
Code:
Col1 col2 col3 col4 
1 952 sa 140
2 124 sb 130
3 950 sc 92
4 125 sd 150
5 800 se 110

File2.tsv
Code:
Col1 col2 col3 col4 
1 952 sa 130
2 124 sb 150
3 950 sc 90
4 125 sd 160
5 800 se 100

Result file.tsv
Code:
col1 col2
950 46
952 70
124 65
800 55
125 75

Last edited by Don Cragun; 06-20-2013 at 05:35 AM.. Reason: Fixed CODE tag for code segment.
# 2  
Old 06-20-2013
As the order in which array elements are retrieved in a (for i in arr) command is undefined (c.f. awk man page), there's not much you can do. One option might be to use sequence numbers as indexes into the array, and then print according to that sequence.

BTW, the result that you present is not the result of your command line applied to the sample files as posted.
# 3  
Old 06-20-2013
And also your awk seems to be doing things only with file1.tsv. What would you really require to do with both files ? If you want to preserve order, it is better to print them as it gets processed than using array indexes.
# 4  
Old 06-20-2013
Hi raja,

what I'm doing is

1st I'm matching the file1.tsv 2nd col value to file2.tsv then take
the average of the 4th col with the corresponding value of col2,
that so I'm printing 2sd col value and result value , but the printed flow is changing

---------- Post updated at 03:22 PM ---------- Previous update was at 03:10 PM ----------

Yes rudic, the result of above is,
this can be get only after removed the next word

Code:
col1 col2
950 91
952 135
124 140
800 105
125 155

# 5  
Old 06-20-2013
Code:
awk 'FNR>1 && NR==FNR{a[$2]=$4;next;} FNR>1 {a[$2]+=$4; print $2"\t"a[$2]/2}' f1 f2

# 6  
Old 06-20-2013
Thanks Raja its working fine
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