Awk printf problem


 
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# 1  
Old 03-19-2009
[Solved] Awk printf problem

Hi,

I've got a basic problem using printf statement in awk.
I want to write float values with always 8 characters width.
Examples :
1.345678
12.45678
123.4567
1234.678
-23.5678
-2.45678
-23456.8
.....

I cannot find the right printf format %8.1f, %7.5f....
Can anyone help ?
Thanks.

Last edited by cazhot; 03-19-2009 at 03:05 PM..
# 2  
Old 03-19-2009
Code:
printf "%8.8s\n"

# 3  
Old 03-19-2009
Thanks for the answer.
The problem with this solution is that it does not round the float value, it truncates it.
# 4  
Old 03-19-2009
Code:
awk -F. '
 {
  declen = 7 - length($1)
#  printf "%s\t", $0  ## for comparison
  printf "%8." declen "f\n", $0
 }
'


Last edited by cfajohnson; 03-19-2009 at 02:50 PM..
# 5  
Old 03-19-2009
Thank you very very much !
It did the trick.
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