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Automation & scripting

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

6 matches

Generate Strong Random Passwords with Custom Rules in Python

Build a configurable password generator using Python's secrets module that lets you toggle lowercase, uppercase, digits, and punctuation.

password secrets security

Python

import secrets
import string

def generate_password(length=16, use_lower=True, use_upper=True, use_digits=True, use_punct=True):
    pool = ''
    if use_lower:
        pool += string.ascii_lowercase
    if use_upper:
        pool += string.ascii_uppercase
    if use_digits:
        pool += string.digits
    if use_pu…

37 0 Open

Automation & scripting easy

How to Quarantine Suspicious Files in Python

Move files with suspicious extensions to a quarantine folder using pathlib and shutil for safe isolation.

file-organization security automation

Python

import shutil
import os
from pathlib import Path

def quarantine_files(source_dir, quarantine_dir, suspicious_extensions):
    """
    Move files with suspicious extensions to a quarantine folder.
    Returns list of moved files.
    """
    source_path = Path(source_dir)
    quarantine_path = Path(quarantine_dir)
   …

11 0 Open

Automation & scripting easy

How to Scan Files Against a Malware Hash List in Python

Compare a file's SHA-256 hash against a known malware hash set and report whether it's clean or infected.

hashlib file-scanning security

Python

import hashlib
from pathlib import Path

# Mock file content (in real usage, read from disk)
MOCK_FILE_CONTENT = b"print('hello world')"

KNOWN_MALWARE_HASHES = {
    "8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92",
    "5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8",
}

def sha25…

14 0 Open

Automation & scripting easy

How to Write an IP Block List to hosts.deny in Python

This Python script validates a list of IP addresses and CIDR ranges, then writes them to a hosts.deny file to block connections at the TCP wrapper level.

hosts.deny ip-block ipaddress

Python

from ipaddress import ip_network

def write_hosts_deny(ip_list, output_file="hosts.deny"):
    with open(output_file, "w") as f:
        for ip in ip_list:
            try:
                ip_network(ip)
                f.write(f"ALL: {ip}\n")
            except ValueError:
                continue
    print(f"Written…

14 0 Open

Automation & scripting easy

Restrict Secrets File Permissions with the chmod Script in Python

This script restricts a secrets file to 0600 permissions, rotates it to a dated backup, and creates a fresh protected file for secure automation workflows.

chmod permissions secrets

Python

import os
import sys
import stat
from pathlib import Path

def restrict_secrets_file(filepath: str) -> None:
    """Set restrictive permissions (0600) on a secrets file."""
    path = Path(filepath).expanduser()
    
    if not path.is_file():
        raise FileNotFoundError(f"Secrets file not found: {path}")
    
   …

13 0 Open

Automation & scripting easy

Rotate API keys in Python by updating an .env template

Replace an old API key with a new one inside an .env template file, with a guard for missing keys.

api-keys env-files automation

Python

import json
from pathlib import Path

def rotate_api_keys(env_template_path: Path, old_key: str, new_key: str) -> None:
    """Replace an old API key with a new one in an .env template file."""
    content = env_template_path.read_text()
    if old_key not in content:
        print(f"Error: '{old_key}' not found in {e…

13 0 Open

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