[rails_engine_rename.sh]

rails_engine_rename.sh

# Note, works best if your engine name isn't reserved

# Rename in files
find ~/www/rails/engines/old_engine/ -type f | xargs sed -i s/Old/New/g
find ~/www/rails/engines/old_engine/ -type f | xargs sed -i s/old/new/g

# Remove -n to run command
find ~/www/rails/engines/old_engine -type f -name '*' -print0 | xargs -0 rename -n 's/(.*)old\.(.*)/$new\.$2/g';