dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

brandonb927

#!/bin/sh

###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

zoocoup

###  Updated to reflect changes introduced with 10.13.4. Update to 10.13.4 if needed before attempting to make 
SecureToken-related changes. ###

sysadminctl is a tool Apple introduced in 10.10 for working with system user accounts. In 10.13, sysadminctl is Apple's 
recommended tool for working with user accounts in the CLI, replacing functionality that has long been provided by dscl 
and adds new features available only in 10.13. sysadminctl can be used to change user passwords, create new users or 
check the status of a new-to-10.13 security feature named SecureToken.

SecureToken is a non-visible APFS file system attribute, unlike the SIP protected flag or file creation date, that triggers 
the creation of a new AuthenticationAuthority entry in a user's local account record 

haircut

#!/usr/bin/python
"""
Completely reset TCC services database in macOS

Note: Both the system and individual users have TCC databases; run the script as both
      a user and as root to completely reset TCC decisions at all levels.

2018-08-15: Resetting the 'Location' service fails; unknown cause
2018-08-16: Confirmed the 'All' service does not really reset _all_
            services, so individual calls to each service is necessary.

gregneagle

#!/usr/bin/python

import os
import sys

from CoreFoundation import (CFPreferencesAppValueIsForced,
                            CFPreferencesCopyAppValue,
                            CFPreferencesCopyValue,
                            kCFPreferencesAnyUser,
                            kCFPreferencesAnyHost,

bearfrieze

Comprehensions in Python the Jedi way

by Bjørn Friese

Beautiful is better than ugly. Explicit is better than implicit.

-- The Zen of Python

I frequently deal with collections of things in the programs I write. Collections of droids, jedis, planets, lightsabers, starfighters, etc. When programming in Python, these collections of things are usually represented as lists, sets and dictionaries. Oftentimes, what I want to do with collections is to transform them in various ways. Comprehensions is a powerful syntax for doing just that. I use them extensively, and it's one of the things that keep me coming back to Python. Let me show you a few examples of the incredible usefulness of comprehensions.

pudquick

from ctypes import CDLL, c_uint, byref, create_string_buffer
libc = CDLL('/usr/lib/libc.dylib')

def sysctl(name):
    size = c_uint(0)
    libc.sysctlbyname(name, None, byref(size), None, 0)
    buf = create_string_buffer(size.value)
    libc.sysctlbyname(name, buf, byref(size), None, 0)
    return buf.value

pudquick

#!/usr/bin/python
approved_UUIDs     = ['your-beacon-UUID-here'] # see line 64
path_to_lock_sound = '/Users/frogor/Desktop/car_lock.m4a'
path_to_warn_sound = '/Users/frogor/Desktop/viper_warning.m4a'

import time
import objc
from objc import NO
from Foundation import NSBundle, NSClassFromString, NSObject, NSRunLoop, NSDate, NSUUID, NSMakeRange, NSURL
from AVFoundation import AVAudioPlayer

hernamesbarbara

Principles of Adult Behavior

1. Be patient. No matter what.
2. Don’t badmouth: Assign responsibility, not blame. Say nothing of another you wouldn’t say to him.
3. Never assume the motives of others are, to them, less noble than yours are to you.
4. Expand your sense of the possible.
5. Don’t trouble yourself with matters you truly cannot change.
6. Expect no more of anyone than you can deliver yourself.
7. Tolerate ambiguity.
8. Laugh at yourself frequently.