⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,
Notify is a utility for sending push notifications via Pushover from the command line. It can be run manually, but is most useful for sending notifications from shell scripts, cron jobs, and long running tasks.
To install, copy the contents of notify.php
to somewhere on your computer, and make it executable:
Get Homebrew installed on your mac if you don't already have it
Install highlight. "brew install highlight". (This brings down Lua and Boost as well)
I frequently administer remote servers over SSH, and need to copy data to my clipboard. If the text I want to copy all fits on one screen, then I simply select it with my mouse and press CMD-C, which asks relies on m y terminal emulator (xterm2) to throw it to the clipboard.
This isn't practical for larger texts, like when I want to copy the whole contents of a file.
If I had been editing large-file.txt
locally, I could easily copy its contents by using the pbcopy
command:
The goal of this cheatsheet is to make it easy to add hand-rolled authentication to any rails app in a series of layers.
First the simplest/core layers, then optional layers depending on which features/functionality you want.
Specs |
|
---|---|
AUTHOR | Ira Herman |
LANGUAGE/STACK | Ruby on Rails Version 4, 5, or 6 |
Work in progress, I'll write this up properly when I'm done.
Almost all credit goes to @maxogden for putting me on to this and pointing me in the right direction for each of these items.
Prerequisites:
- Raspberry Pi
- Kindle Paperwhite freed from its locked down state (jailbroken) http://www.mobileread.com/forums/showthread.php?t=198446
- You have to downgrade your Kindle to 5.3.1 to install the current jailbreak; that's just a matter of getting the old version image, putting it on your Kindle via USB and telling it to install "upgrade". Then you put in the Jailbreak files, load the ebook and break.
- Your kindle will be quick to detect an upgrade is available so it'll want to upgrade soon afterwards but the jailbreak will last but you have to reinstall the developer certificates so it's a bit of a pain but doable. Find all the instructions on the mobileread.com forums and wiki.
This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"
#!/usr/bin/python | |
import curses, random | |
screen = curses.initscr() | |
width = screen.getmaxyx()[1] | |
height = screen.getmaxyx()[0] | |
size = width*height | |
char = [" ", ".", ":", "^", "*", "x", "s", "S", "#", "$"] | |
b = [] |
# The MIT License (MIT) | |
# Copyright (c) 2016 Vladimir Ignatev | |
# | |
# Permission is hereby granted, free of charge, to any person obtaining | |
# a copy of this software and associated documentation files (the "Software"), | |
# to deal in the Software without restriction, including without limitation | |
# the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
# and/or sell copies of the Software, and to permit persons to whom the Software | |
# is furnished to do so, subject to the following conditions: | |
# |