Shell script to replace strings in files based on two file-based lists

replace.sh

#!/bin/bash

# given list_search.txt with content, e.g.
# <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="3.1.0" />
# <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="3.1.0" />

# given list_replace.txt with content, e.g.
# <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="3.1.5" />
# <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="3.1.5" />

oifs=$IFS # save a copy of the input field separator character list
IFS=$'\n' 
search=( $(< list_search.txt) )
replace=( $(< list_replace.txt) )
IFS=$oifs # restore

for ((i=0; i<${#search[@]}; i++)); do
    # echo "First parameter : ${search[$i]} -- second parameter : ${replace[$i]}"
    n=${search[$i]}
    k=${replace[$i]}
    # do not use / as a sed delimiter - it will fail when replacing xml
    find . -type f -name \*.csproj -exec sed -i '' -e "s#$n#$k#g" '{}' +
done