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Shell Programming and Scripting

summing the digits of a binary nuMBER

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# 1  
Old 08-17-2012
summing the digits of a binary nuMBER
please help me write a perl program to find the difference of 1 and zeros of a 6 digit binary number.

eg If input is 111100 expected output +2
if input is 000011 expected output -2
input is 000111 expected output 0
# 2  
Old 08-17-2012
Interested in the tool (perl) used for the solution or the solution?
# 3  
Old 08-17-2012
Code:
 
echo "01" | perl -lane '{@a=split //;foreach(@a){if($_ == 1){$one++;}else{$zero++}}print ($one - $zero)}'

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