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  1. Prepare
  2. Linux Shell
  3. Bash
  4. Arithmetic Operations
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Arithmetic Operations

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  • truongtran19315
     + 0 comments
    read exp_in
echo "scale=10; $exp_in" | bc -l | awk '{printf "%.3f\n", $0}'

  • emanuelhaine
     + 0 comments

    Just another way using here strings "<<<"

    read expression result=expression") printf "%.3f\n" "$result"

  • debrajroy483
     + 0 comments
    #!/bin/bash

read expression

result=$(echo "scale=4; $expression" | bc -l)


if (( $(echo "$result >= 0" | bc -l) )); then
    rounded_result=$(echo "$result + 0.0005" | bc -l)
else
    rounded_result=$(echo "$result - 0.0005" | bc -l)
fi


final_result=$(echo "scale=3; $rounded_result / 1" | bc -l) # dividing the rounded_result by 1 to ommit the zero at end (if there's any)



echo $final_result

  • sovan_keshri
     + 0 comments

    SOLVED

    start of script

    !/bin/bash

    read expression result=expression" | bc -l) rounded_res=result") echo $rounded_res

  • giacomo_arru
     + 0 comments

    read expr

    result=expr" | bc -l)

    printf "%.3f\n" "$result"