el8 to el9 package resolution

#!/bin/bash

DEBUG=1 # If you want interim step info, set this to 1
ARCH=`uname -i`

[[ ${DEBUG} == "1" ]] && echo -e "Initial packages to process: \e[1m`rpm -qa | grep el8 | wc -l`\e[0m"
[[ ${DEBUG} == "1" ]] && echo -e "Looking for 'el8' packages with \e[1;4m${ARCH}\e[0m and \e[1;4mnoarch\e[0m architectures" && sleep 4

for i in `rpm -qa | grep el8 | sed "s/\.${ARCH}//; s/\.noarch//"`; do
   readarray -t aPkg < <(dnf info ${i} | egrep "^Name|^Version|^Release" | awk '{print $3}')
   [[ ${DEBUG} == "1" ]] && echo "Input parsing: `declare -p aPkg`"
   pkgBase="${aPkg[0]}"
   pkgOld="${aPkg[0]}-${aPkg[1]}-${aPkg[2]}"
   [[ ${DEBUG} == "1" ]] && echo "Base Name:      ${pkgBase}"
   [[ ${DEBUG} == "1" ]] && echo "Old Install:    ${pkgOld}"

   newVer=`yum list ${pkgBase} | grep el9 | awk '{print $2}' | head -1`
   pkgNew=${pkgBase}-${newVer}
   [[ ${DEBUG} == "1" ]] && echo "New Install:    ${pkgNew}"
   dnf -y swap ${pkgOld} ${pkgNew} --allowerasing --nobest
   echo; echo
done

[[ ${DEBUG} == "1" ]] && echo -e "Remaining packages to process: \e[1m`rpm -qa | grep el8 | wc -l`\e[0m"