Scale variable with bc

for dir in basil*; do
  # In reference region mode, M0.txt = estimated M0 value from arterial blood. 
  # Use bc to scale the resulting number so it only has 2 digits after the decimal point.
  # Critically, bc only works if you DO some math (so here I divide by 1)
  echo "${dir}, calib/M0_arterial_blood, $(echo "scale=2; $(cat ${dir}/calib/M0.txt)/1" | bc)"
done

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