MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

mildmojo

# Here's a contrived example of a LEFT JOIN using ARel. This is an example of
# the mechanics, not a real-world use case.

# NOTE: In the gist comments, @ozydingo linked their general-purpose ActiveRecord
# extension that works for any named association. That's what I really wanted!
# Go use that! Go: https://gist.github.com/ozydingo/70de96ad57ab69003446

# == DEFINITIONS
# - A Taxi is a car for hire. A taxi has_many :passengers.
# - A Passenger records one person riding in one taxi one time. It belongs_to :taxi.

mitchwongho

# Assuming an Ubuntu Docker image
$ docker run -it <image> /bin/bash

jmhobbs

# -*- coding: utf-8 -*-
import socket
import os

print("Connecting...")
if os.path.exists("/tmp/python_unix_sockets_example"):
    client = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
    client.connect("/tmp/python_unix_sockets_example")
    print("Ready.")
    print("Ctrl-C to quit.")

rponte

# The command finds the most recent tag that is reachable from a commit.
# If the tag points to the commit, then only the tag is shown.
# Otherwise, it suffixes the tag name with the number of additional commits on top of the tagged object 
# and the abbreviated object name of the most recent commit.
git describe

# With --abbrev set to 0, the command can be used to find the closest tagname without any suffix:
git describe --abbrev=0

# other examples

ageis

security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict

mdonkers

#!/usr/bin/env python3
"""
License: MIT License
Copyright (c) 2023 Miel Donkers

Very simple HTTP server in python for logging requests
Usage::
    ./server.py [<port>]
"""
from http.server import BaseHTTPRequestHandler, HTTPServer

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!");

arieljannai

for (var arrScripts = document.getElementsByTagName('script'), i = 0; i < arrScripts.length; i++) {
	if (arrScripts[i].textContent.indexOf('externalId') != -1) {
		var channelId = arrScripts[i].textContent.match(/\"externalId\"\s*\:\s*\"(.*?)\"/)[1];
		var channelRss = 'https://www.youtube.com/feeds/videos.xml?channel_id=' + channelId;
		var channelTitle = document.title.match(/\(?\d*\)?\s?(.*?)\s\-\sYouTube/)[1];
		console.log('The rss feed of the channel \'' + channelTitle + '\' is:\n' + channelRss);
		break;
	}
}

zanculmarktum

#!/bin/bash

# Copyright 2018, 2019, 2020 Azure Zanculmarktum
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.