Command steps to rename a Phoenix project

rename_phoenix_project.sh

# tested on macOS 10.12.4
# based on https://elixirforum.com/t/how-to-change-a-phoenix-project-name-smoothly/1217/6

# replace values as necessary
current_otp="hello_phoenix" 
current_name="HelloPhoenix"
new_otp=""
new_name=""

git grep -l $current_otp | xargs sed -i '' -e 's/'$current_otp'/'$new_otp'/g'
git grep -l $current_name | xargs sed -i '' -e 's/'$current_name'/'$new_name'/g'
mv ./lib/$current_otp ./lib/$new_otp
mv ./lib/$current_otp.ex ./lib/$new_otp.ex

Thank you, that was really helpful.

The only thing that is missing is moving the _web directory. Which I just did manually.