Batch filename conversion to zh_TW from zh_CN 批次檔名轉繁體

_filename_convert_to_zh_TW.md

The entire script is generated with gpt-4-turbo on 2024-April-28; This script won't work without https://github.com/BYVoid/OpenCC

Usage:

./convert2zhtw.sh .

or append suffix,

./convert2zhtw.sh . "_content_in_simplified_characters"

Please be aware when append suffix, the filename duplication checking will no longer works. E.g., ABC -> ABC_new -> ABC_new_new.

---

此sciprt是透過GPT-4 Turbo產出。必須搭配OpenCC指令來使用。 將簡體檔案、目錄名稱轉換成繁體（不包含內容）。

使用方式：

./convert2zhtw.sh .

可以替檔名加上後綴：

./convert2zhtw.sh . "_內容是簡體"

注意加上suffix會無法比較重複的檔名，如果跑兩次以上會變成： 這是繁體 -> 這是繁體_內容是簡體 -> 這是繁體_內容是簡體_內容是簡體

convert2zhtw.sh

#!/bin/bash

# ANSI color codes
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
NC='\033[0m' # No Color

# Function to display usage information
usage() {
  echo -e "Usage: $0 <directory or file> [append_suffix(optional)]"
  echo "Converts filenames from Simplified to Traditional Chinese using OpenCC."
  echo "Optionally appends a suffix to file names, preserving extensions. The suffix is optional."
  exit 1
}

# Check if opencc is installed
if ! command -v opencc &> /dev/null; then
    echo -e "${RED}opencc could not be found. Please install opencc from https://github.com/BYVoid/OpenCC to use this script.${NC}"
    exit 2
fi

# Check if an argument is provided, if not, display usage
[[ $# -eq 0 ]] && usage

# Set the target path and optional suffix
target_path="$1"
suffix="${2:-}"  # Suffix is optional and can be empty

echo "Starting conversion for: $target_path with optional suffix '$suffix'"

# Function to convert name using opencc
convert_name() {
  echo "$1" | opencc -c s2tw.json
}

# Function to recursively rename items
rename_items() {
  local path="$1"
  # Using find to list all files, ignoring directories for renaming
  find "$path" -depth -type f | while IFS= read -r item; do
    local dir=$(dirname "$item")
    local base=$(basename "$item")
    local name="${base%.*}"
    local ext="${base##*.}"
    local converted_name=$(convert_name "$name")

    # Append suffix only if not empty and handle extensions
    if [[ -n "$suffix" ]]; then
      converted_name="${converted_name}${suffix}"
    fi
    if [[ "$name" != "$base" ]]; then  # File has an extension
      converted_name="${converted_name}.${ext}"
    else  # File has no extension
      converted_name="${converted_name}"
    fi

    # Perform renaming only if new and old names differ
    if [[ "$base" != "$converted_name" ]]; then
      echo -e "${GREEN}Renaming '$base' to '$converted_name'${NC}"
      mv -v "$item" "$dir/$converted_name"
    else
      echo -e "${YELLOW}Skipping: $item (no name change)${NC}"
    fi
  done
}

# Execute the renaming
rename_items "$target_path"