question about floating point calcuation with shell script / bc

Patrick Dung patrick_dkt at
Mon Nov 12 05:28:31 PST 2007


I have a file with numbers in each line.
Each number is a decimal number.
My task is to add them up and get the final answer.

I have searched with the search engine.
I found bash cannot handle floating point calculation.

I tried to use 'bc' and found if the final answer is < 1 (eg. 0.2)
It display .2 instead of 0.2 (no leading zero).

Any suggestion or other methods?
I know ksh could do floating point calculation
but I am now familiar with ksh.


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