bc, negative values and "total" (whit swapped -)


 
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# 1  
Old 10-26-2009
bc, negative values and "total" (whit swapped -)

Hi All,

I need to sum numbers, in bash, input is this:

Code:
10.00
12.33
14.99
134.00
1211.09
130.01-      <--- it is negative, but "-" is at the end..
901.99
10.34-        <--- another negative number...

bc -l is giving me error so only solution to my problem would be to swap - to the front of the number, right? How could I achieve that?


Thank you in advance!
Many thanks
Chris

Last edited by columb; 10-26-2009 at 05:35 PM..
# 2  
Old 10-26-2009
Code:
nawk '/.*-/{$0=0-$0}{s+=$0}END{print s}' myFile

# 3  
Old 10-26-2009
Sed solution..

Code:
sed 's/^\(.*\)-\s*$/-\1/' t1

Also, place the input using CODE tags.
# 4  
Old 10-26-2009
Thank you everyone!

As always, top-notch help!

Sorry for not using TAGSSmilie

Cheers
Chris
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