Reference library

Automation & scripting

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

3 matches

Build a Python Utility That Verifies Backup Integrity Automatically

Automatically compute and verify SHA-256 checksums of backup files using a JSON manifest to detect missing or corrupted data.

sha256 backup integrity

Python

import hashlib
import os
import json

def compute_checksum(filepath, algorithm='sha256'):
    """Compute checksum for the given file."""
    hash_func = hashlib.new(algorithm)
    with open(filepath, 'rb') as f:
        for chunk in iter(lambda: f.read(4096), b''):
            hash_func.update(chunk)
    return hash_f…

52 0 Open

Automation & scripting medium

How to Sync Two Directories in Python (rsync-like)

Mirror a source directory into a destination by copying new or changed files and deleting extras, similar to rsync.

sync directory rsync

Python

import os
import shutil
import sys
from pathlib import Path

def sync_dirs(src: Path, dst: Path):
    """Mirror src into dst: copy new files, overwrite changed, delete extras."""
    dst.mkdir(parents=True, exist_ok=True)
    for dst_entry in dst.rglob('*'):
        rel = dst_entry.relative_to(dst)
        src_entry =…

14 0 Open

Automation & scripting medium

Track File Changes with Version History in Python

A Python utility that monitors a file for changes, creating versioned backups with SHA-256 hashing to detect modifications and store a local JSON history.

file-monitoring versioning automation

Python

import hashlib, json, os, shutil, time
from pathlib import Path

class FileTracker:
    def __init__(self, history_file="file_history.json"):
        self.history_file = Path(history_file)
        self.history = self._load_history()

    def _load_history(self):
        if self.history_file.exists():
            retur…

37 0 Open

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