#!/usr/bin/env zsh # Snakify - convert file names to_snake_case filename=$(basename -- "$1") extension="${filename##*.}" filename="${filename%.*}" new_filename=$(echo ${filename// /_} | tr '-' '_' | tr -cd '[:alnum:]._-') new_basename=$(echo "$new_filename.$extension") mv -i "$1" "$new_basename" mv -i "$new_basename" "${new_basename:l}"