记录一下我删除相机 SD 卡当中废片的工作流

采用 python 脚本实现（python3）。

相关说明：

1. Linux/mac 电脑，如果你是 windows 电脑那么脚本需要稍加改造
2. 相机当中开启了拍摄的照片按照日期文件夹存储，这种功能，否则可能一个文件夹下的照片数量特别多，你需要维护一个特别长的 keep.txt
3. keep.txt 当中的文件名可以是完整文件名，也可以不包含扩展名。
   a. 如果是完整文件名，那脚本就根据完整文件名匹配去保留/删除照片
   b. 如果只包含文件名 stem，没有扩展名，将匹配所有包含 stem 的文件名，进而执行保留/删除逻辑。比如 keep.txt 当中有这样一行 HDK09432 ，那这些文件 HDK09432.JPG, HDK09432.ARW, HDK09432.HEIF 都会被保留，这尤其适用于你开启了 JPEG/RAW 拍摄，那么一张图片会有两个文件
   
4. 支持模拟运行，只需要在最后添加 --dry-run
5. 索尼 JPEG 照片扩展名是 JPG，RAW 拍摄文件扩展名是 ARW，HEIF 拍摄扩展名是 HIF (Apple 的 HEIF 照片扩展名是 HEIC)

cd /run/media/dk/708D-3AF3/DCIM/15660613/

ls
HDK09429.JPG  HDK09432.JPG  HDK09435.JPG  HDK09438.JPG  HDK09441.JPG  HDK09444.JPG  HDK09447.JPG
HDK09430.JPG  HDK09433.JPG  HDK09436.JPG  HDK09439.JPG  HDK09442.JPG  HDK09445.JPG  HDK09448.JPG
HDK09431.JPG  HDK09434.JPG  HDK09437.JPG  HDK09440.JPG  HDK09443.JPG  HDK09446.JPG  HDK09449.JPG

$python3 ~/Downloads/myapps/delete_unwanted_images.py ./keep.txt --dry-run

========== 执行模式 ==========
DRY RUN
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09429.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09430.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09431.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09433.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09434.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09435.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09436.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09437.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09439.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09443.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09444.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09445.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09446.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09447.JPG
[DRY-RUN] 将删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09448.JPG

========== 保留文件 ==========
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09432.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09438.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09440.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09441.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09442.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09449.JPG

========== 统计 ==========
模式: DRY-RUN
计划删除文件数: 15
保留文件数: 6

========== 删除列表 ==========
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09429.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09430.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09431.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09433.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09434.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09435.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09436.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09437.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09439.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09443.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09444.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09445.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09446.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09447.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09448.JPG

========== 保留列表 ==========
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09432.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09438.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09440.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09441.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09442.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09449.JPG

$python3 ~/Downloads/myapps/delete_unwanted_images.py ./keep.txt

========== 执行模式 ==========
REAL DELETE
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09429.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09430.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09431.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09433.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09434.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09435.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09436.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09437.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09439.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09443.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09444.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09445.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09446.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09447.JPG
已删除: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09448.JPG

========== 保留文件 ==========
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09432.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09438.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09440.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09441.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09442.JPG
保留: /run/media/dk/708D-3AF3/DCIM/15660613/HDK09449.JPG

========== 统计 ==========
模式: DELETE
计划删除文件数: 15
保留文件数: 6
实际删除成功数: 15

========== 删除列表 ==========
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09429.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09430.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09431.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09433.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09434.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09435.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09436.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09437.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09439.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09443.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09444.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09445.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09446.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09447.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09448.JPG

========== 保留列表 ==========
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09432.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09438.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09440.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09441.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09442.JPG
/run/media/dk/708D-3AF3/DCIM/15660613/HDK09449.JPG

ls
HDK09432.JPG  HDK09438.JPG  HDK09440.JPG  HDK09441.JPG  HDK09442.JPG  HDK09449.JPG  keep.txt

脚本内容：

$cat ~/Downloads/myapps/delete_unwanted_images.py 
#!/usr/bin/env python3
import os
import sys

IMAGE_EXTS = {".jpg", ".jpeg", ".png", ".arw", ".heic", ".heif", ".hif", ".dng"}

def load_keep_list(path):
    exact_keep = set()
    stem_keep = set()

    with open(path, "r", encoding="utf-8") as f:
        for line in f:
            raw = line.strip()
            if not raw:
                continue

            stem, ext = os.path.splitext(raw)

            if ext:  # 有扩展名 → 精确匹配
                exact_keep.add(raw)
            else:    # 无扩展名 → stem 匹配
                stem_keep.add(stem)

    return exact_keep, stem_keep

def is_image_file(filename):
    ext = os.path.splitext(filename)[1].lower()
    return ext in IMAGE_EXTS

def main():
    if len(sys.argv) < 2:
        print("Usage: python3 delete_unwanted_images.py ./keep.txt [--dry-run]")
        sys.exit(1)

    keep_path = sys.argv[1]
    dry_run = "--dry-run" in sys.argv[2:]

    root_dir = os.getcwd()

    if not os.path.exists(keep_path):
        print(f"[ERROR] keep.txt not found: {keep_path}")
        sys.exit(1)

    exact_keep, stem_keep = load_keep_list(keep_path)

    to_delete = []
    to_keep = []

    # 扫描文件
    for root, dirs, files in os.walk(root_dir):
        for file in files:
            if not is_image_file(file):
                continue

            full_path = os.path.join(root, file)
            stem = os.path.splitext(file)[0]

            if (file in exact_keep) or (stem in stem_keep):
                to_keep.append(full_path)
            else:
                to_delete.append(full_path)

    deleted_count = 0

    print("\n========== 执行模式 ==========")
    print("DRY RUN" if dry_run else "REAL DELETE")

    # 删除逻辑
    for path in to_delete:
        if dry_run:
            print(f"[DRY-RUN] 将删除: {path}")
        else:
            try:
                os.remove(path)
                print(f"已删除: {path}")
                deleted_count += 1
            except Exception as e:
                print(f"[ERROR] 删除失败 {path}: {e}")

    # 保留输出
    print("\n========== 保留文件 ==========")
    for path in to_keep:
        print(f"保留: {path}")

    # 统计
    print("\n========== 统计 ==========")
    print(f"模式: {'DRY-RUN' if dry_run else 'DELETE'}")
    print(f"计划删除文件数: {len(to_delete)}")
    print(f"保留文件数: {len(to_keep)}")

    if not dry_run:
        print(f"实际删除成功数: {deleted_count}")

    # 列表输出
    print("\n========== 删除列表 ==========")
    for path in to_delete:
        print(path)

    print("\n========== 保留列表 ==========")
    for path in to_keep:
        print(path)

if __name__ == "__main__":
    main()

keep.txt 内容示例

$cat keep.txt 
HDK09432
HDK09438
HDK09440
HDK09441
HDK09442
HDK09449