hrldcpr

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

sumeetpareek

#!/usr/bin/env python2
"""A very simple Apache access log parser in Python

usage help = http://i.imgur.com/XBiX2kX.png

when required arguments are missing = http://i.imgur.com/P5L0GZV.png

when incorrect file path is passed = http://i.imgur.com/sJDc0om.png

successful sample output = http://i.imgur.com/iH89mwI.png

ageis

⚠️ Content below I now consider obsolete. My latest guide is now located here: Technical guide for using YubiKey series 4 for GPG and SSH. Please consult that resource instead.

---

Quick GPG Smartcard Guide

wido

#!/usr/bin/env python3
"""
Generate a random IPv6 address for a specified subnet
"""

from random import seed, getrandbits
from ipaddress import IPv6Network, IPv6Address

subnet = '2001:db8:100::/64'

sergey-dryabzhinsky

###
# Proxmox or other server kernel params cheap tune and secure.
# Try it if you have heavy load on server - network or memory / disk.
# No harm assumed but keep your eyes open.
#
# @updated: 2020-02-06 - more params used, adjust some params values, more comments on params
#

### NETWORK ###

ageis

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate). I've published a Bash function which automates this slightly special key generation process.

mort3za

# Generate a new pgp key: (better to use gpg2 instead of gpg in all below commands)
gpg --gen-key
# maybe you need some random work in your OS to generate a key. so run this command: `find ./* /home/username -type d | xargs grep some_random_string > /dev/null`

# check current keys:
gpg --list-secret-keys --keyid-format LONG

# See your gpg public key:
gpg --armor --export YOUR_KEY_ID
# YOUR_KEY_ID is the hash in front of `sec` in previous command. (for example sec 4096R/234FAA343232333 => key id is: 234FAA343232333)

jbsulli

Demo:

Spoiler warning

Spoiler text. Note that it's important to have a space after the summary tag. You should be able to write any markdown you want inside the <details> tag... just make sure you close <details> afterward.

console.log("I'm a code block!");

shimon

#!/bin/bash

# Quick script to disable an internal webcam if an external one is attached, or
# enable the internal one if the external one's not attached.

# by Shimon Rura, 25 Jan 2018. In the public domain.

# To use, run `lsusb` and identify the lines for your internal and external camera devices.
# For example, mine are:
# internal:

malcolmgreaves

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Updated to use Python 3 by Malcolm Greaves.
#
# Python script to find the largest files in a git repository.
# The general method is based on the script in this blog post:
# http://stubbisms.wordpress.com/2009/07/10/git-script-to-show-largest-pack-objects-and-trim-your-waist-line/
#
# The above script worked for me, but was very slow on my 11GB repository. This version has a bunch