python 備份檔案，從 D盤 到Z盤。並且保留15天的檔案

iDEAAM發表於2024-10-31
Python
備份檔案，從 D盤 到Z盤。並且保留15天的檔案

import os
import shutil
from datetime import datetime, timedelta

def move_and_clean_folders(a_folder, b_folder, keep_count=15):
    try:
        # 獲取前兩天的日期
        yesterday = datetime.now() - timedelta(days=2)
        yesterday_str = yesterday.strftime('%Y-%m-%d')

        # 構建昨天的資料夾路徑
        source_folder = os.path.join(a_folder, yesterday_str)

        # 檢查昨天的資料夾是否存在
        if not os.path.exists(source_folder):
            print("Yesterday's folder does not exist.")
            return

        # 將昨天的資料夾剪下到 b 資料夾
        destination_folder = os.path.join(b_folder, yesterday_str)
        shutil.move(source_folder, destination_folder)
        print(f"Moved folder {source_folder} to {destination_folder}")

        # 在 b 資料夾中保留最近的 keep_count 個資料夾，按檔名排序
        folder_list = sorted([os.path.join(b_folder, d) for d in os.listdir(b_folder)
                              if os.path.isdir(os.path.join(b_folder, d))], key=lambda x: os.path.basename(x))
        
        # 刪除除了最新的 keep_count 個資料夾之外的所有資料夾
        for folder in folder_list[:-keep_count]:
            shutil.rmtree(folder)
            print(f"Deleted folder {folder}")

    except Exception as e:
        print(f"An error occurred: {e}")

# 設定資料夾路徑
a_folder = r"D:\自動備份\備份檔案2"
b_folder = r"z:\自動備份\備份檔案2"

# 呼叫函式 業務庫
move_and_clean_folders(a_folder, b_folder, 15)


# 設定資料夾路徑 挖掘庫
a_folder = r"D:\自動備份\備份檔案1"
b_folder = r"z:\自動備份\備份檔案1"

# 呼叫函式
move_and_clean_folders(a_folder, b_folder, 15)

　　

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