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merging two files

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# 1  
Old 06-26-2012
merging two files
file1.txt

Code:
1 2
10 11
56 57
7 8
43 44

and let's suppose that there is a file called file2.txt with 100 columns
I want to produce a file3.txt with columns specified in file1.txt in that order (1,2,10,11,56,57,7,8,43,44)

Thanks!
Last edited by Scrutinizer; 06-26-2012 at 01:01 PM.. Reason: code tags
# 2  
Old 06-26-2012
Post sample of input and output...
# 3  
Old 06-26-2012
file1.txt

Code:
1 2
10 11
56 57
7 8
43 44

______________________

file2.txt

Code:
1 2 3 4 5 ....................98 99 100
1 1 1 1 1 ..................... 1 1 1 
2 2 2 2 2 ...................... 2 2 2

________________________________

the desired output will be

Code:
1 2 10 11 56 57 7 8 43 44
1 1 1 1 1 1 1 1 1 1
2 2 2 2 2 2 2 2 2 2

i just put 1s and 2s for simplication.
Last edited by Scrutinizer; 06-26-2012 at 01:01 PM.. Reason: code tags
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