having a bash script convert ft to meters with 1 decimal


 
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# 1  
Old 09-13-2008
having a bash script convert ft to meters with 1 decimal

What is the correct syntax to limit the number of decimals to 1 or 0 in a bash script? Here is the partial code I have which works, but if I echo $meters, it has 4 or 5 decimals:

Code:
METERS=`echo "$FEET * 0.3048" | bc`

I read about scale and length in the bc man page, but I can't seem to get the syntax for length correct in my example above.

Thanks all!
# 2  
Old 09-14-2008
You can use the printf statement of awk. The number in front of the f in the printf statement determines the number of decimals:

Code:
METERS=`awk 'BEGIN{printf("%0.2f",'$FEET' * 0.3048'`

Regards
# 3  
Old 09-14-2008
This looks amazingly like homework.... we don't allow homework on the forums.
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