Extract filename and extension from a string in Bash

#!/bin/bash

filepath="/home/user/requirements.updated.txt"
filename_with_ext=$(basename "$filepath")
filename="${filename_with_ext%.*}"
extension="${filename_with_ext##*.}"

echo "Path: $filepath"
echo "Filename with extension: $filename_with_ext"
echo "Filename without extension: $filename"
echo "File extension: $extension"