changing data into matrix form


 
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# 1  
Old 06-19-2008
changing data into matrix form

Hi,
I have a file whose structure is like this
7
7
1 2 3 4 5
1 3 4 8 6
1 4 5 6 0
2 6 8 3 8
2 5 7 8 0
5 7 9 4 1
3 8 0 2 2
3 5 6 8

basically first two row tell the number of rows and column but the data following them are not arranged in that format. now i want to create another input file in which only the data are there in nxm rows where n and m are number of rows and columns given in the first two lines.

Thank you very much....
# 2  
Old 06-19-2008
You realize that if there are not enough entries in the file there is nothing that will fix the problem except a correct file. Yours is not correct.
Code:
awk 'NR<3' filename | tr -s '\n' ' ' | read rows cols
awk 'NR>2' filename | tr -s ' ' '\n' |\
	awk -v cols=$cols '{printf("%d ", $0)
	  if(NR%cols == 0){printf("\n")}}' > matrixfile

 
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