Find and replace in Xcode

I wanna go through all the files and convert "xxx".localized() into NSLocalizedString("xxx", comment: "")

This is what I have currently as part of a .sh file

find ./[Directory] -name "*.swift" -print0 | while read -d $'\0' file

	# fetches all .localized() e.g. "Hello world".localized()
	instances=echo grep -R ".localized()" $file | awk -F "= " '{print $2}'
	for instance in $instances
		# this does nothing . . . ? also the "instance" that needs to be fed into the `NSLocalizedString` should actually 
		# be `instance | awk -F ".localized()" '{print $1}'` so that I just get "Hello world" but awk doesn't seem to  work without the grep piping . . ?
		sed -i "s/instance/NSLocalizedString(instance, comment: '')/g" "$file"

@lganti Do you still have issues with this?

No, took an alternative approach as I couldn’t figure it out after n hours. Can be closed. Thanks!