MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

kf0jvt

This week is the start of grad school. Since I'm also working full time I decided to take it easy and only registered for two classes. I know that is a small sample size, but I'm pretty disappointed to learn that both of the classes have a lot of group projects involved in them. And I remember from my time as an undergrad student that (almost) every professor was assigning group projects too. Ugh group projects suck! I had hoped that I would be done with group projets when I left undergrad behind. Collaborative learning: the go-to pedagogy for lazy professors when service learning isn't available for some reason.

First, a distinction

I draw a distinction between group projects and group work. To me, a group project is a larger deliverable where the intent is that students will work together over a longer period of time. Group work, on the other hand, is what I call it when you have students break into smaller groups within the class period to discuss something amongst themselves and possibly produce a sho

data-enhanced

HTML5 Markup Template - Basic

A very basic starter template with fundamental HTML5 markup -- only the basics.

Based on HTML5 Bones | http://html5bones.com

rmondello

Exporting (iCloud) Keychain and Safari credentials to a CSV file

Update (October 2021)

Exporting password + one-time code data from iCloud Keychain is now officially supported in macOS Monterey and Safari 15 (for Monterey, Big Sur, and Catalina). You can access it in the Password Manager’s “gear” icon (System Preferences > Passwords on Monterey, and Safari > Passwords everywhere else), or via the File > Export > Passwords... menu item). You shouldn't need to hack up your own exporter anymore.

Original, Obsolete Content (2014)

After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.

hgn

@virgo:~ $ sudo tcpdump -vvvv -ttt -i eth1 icmp6 and 'ip6[40] = 134'
00:00:00.000000 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 200) fe80::b675:eff:fefa:1cb > ip6-allnodes: [icmp6 sum ok] ICMP6, router advertisement, length 200
	hop limit 0, Flags [managed, other stateful], pref medium, router lifetime 1800s, reachable time 0s, retrans time 0s
	  source link-address option (1), length 8 (1): b4:75:0e:fa:01:cb
	    0x0000:  b475 0efa 01cb
	  mtu option (5), length 8 (1):  1280
	    0x0000:  0000 0000 0500
	  prefix info option (3), length 32 (4): 2a01:ffff:43f::/64, Flags [onlink, auto], valid time 7200s, pref. time 1800s
	    0x0000:  40c0 0000 1c20 0000 0708 0000 0000 2a01
	    0x0010:  ffff 043f 0000 0000 0000 0000 0000

steven2358

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

jorgehatccrma

#!/bin/bash

# A simple script to recursively resample a bunch of files
# in a directory. Only certain file extensions (mp3, aac,
# flac, wav) are considered.
#
# It takes 2 command line options: `indir` and `outdir`.
# The destination (`outdir`) is relative to the current
# directory of where you were when the script was run.
#

chrisswanda

Install WireGuard via whatever package manager you use.  For me, I use apt.

$ sudo add-apt-repository ppa:wireguard/wireguard
$ sudo apt-get update
$ sudo apt-get install wireguard

MacOS
$ brew install wireguard-tools

Generate key your key pairs.  The key pairs are just that, key pairs.  They can be

munificent

#include <time.h> //  Robert Nystrom
#include <stdio.h> // @munificentbob
#include <stdlib.h> //     for Ginny
#define  r return    //    2008-2019
#define  l(a, b, c, d) for (i y=a;y\
<b; y++) for (int x = c; x < d; x++)
typedef int i;const i H=40;const i W
=80;i m[40][80];i g(i x){r rand()%x;
}void cave(i s){i w=g(10)+5;i h=g(6)
+3;i t=g(W-w-2)+1;i u=g(H-h-2)+1;l(u