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Automation & scripting

CLI tools, scheduled jobs, filesystem tasks, and glue scripts that save time.

4 matches

Batch Rename Hundreds of Files in Python

Rename all files with a given extension inside a folder using a sequential counter and a custom prefix.

import os
from pathlib import Path

def batch_rename_files(directory: str, prefix: str, extension: str = ".txt") -> None:
    """Rename all files with given extension in directory to prefix_{counter}.ext."""
    path = Path(directory)
    if not path.is_dir():
        print(f"Directory '{directory}' does not exist.")
…

58 0 Open

Automation & scripting easy

Bulk Rename Files in Python with Regex Replacement

Renames every file in a directory by applying a regex substitution to its filename using Python's stdlib re and pathlib.

automation regex pathlib

Python

import re
from pathlib import Path

def bulk_rename_regex(directory, pattern, replacement):
    path = Path(directory)
    renamed = []
    for file in path.iterdir():
        if file.is_file():
            new_name = re.sub(pattern, replacement, file.name)
            if new_name != file.name:
                new_pat…

17 0 Open

Automation & scripting easy

How to rename music files by ID3 tags in Python

Renames MP3 files in a folder using artist and title extracted from ID3 tags, with a mock fallback that parses filenames.

file-renaming id3-tags mp3

Python

import os
import re
from pathlib import Path

def sanitize_filename(name: str) -> str:
    return re.sub(r'[<>:"/\\|?*]', '_', name).strip()

def rename_mp3_from_id3(path: Path) -> None:
    for f in path.glob("*.mp3"):
        # Mock ID3 extraction: derive artist/title from filename
        stem = f.stem
        if "…

12 0 Open

Automation & scripting easy

Rename Files in Folder with Numeric Prefix in Python

Renames all files in a folder by adding a sequential numeric prefix (e.g., 01_, 02_) to each filename using pathlib.

file-renaming pathlib automation

Python

from pathlib import Path

def rename_with_numeric_prefix(folder_path):
    folder = Path(folder_path)
    for index, file_path in enumerate(folder.iterdir(), start=1):
        if file_path.is_file():
            new_name = f"{index:02d}_{file_path.name}"
            new_path = file_path.with_name(new_name)
           …

13 0 Open

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