UNIX for Dummies Questions & Answers

#!/usr/bin/ksh
sed 's/ / A /1' File1 > FileA.tmp
sed 's/ / B /1' File2 > FileB.tmp
sort FileA.tmp FileB.tmp | while read mA1 mA2 mA3 mA4 mA5 mA6 mA7 mA8; do
  read mB1 mB2 mB3 mB4 mB5 mB6 mB7 mB8
  if [[ "${mA3}" = "0" ]]; then
    mB3='0'
  fi
  if [[ "${mA4}" = "0" ]]; then
    mB4='0'
  fi
  if [[ "${mA5}" = "0" ]]; then
    mB5='0'
  fi
  if [[ "${mA6}" = "0" ]]; then
    mB6='0'
  fi
  if [[ "${mA7}" = "0" ]]; then
    mB7='0'
  fi
  if [[ "${mA8}" = "0" ]]; then
    mB8='0'
  fi
  echo ${mB1} ${mB3} ${mB4} ${mB5} ${mB6} ${mB7} ${mB8}
done

paste file1 file2 | awk '{
  for (i=1; i<=NF/2; i++)
    printf ($i ? $(i+NF/2) : 0) " "
  print ""
}'