darwin

It is the year 2020 and replicating APFS containers still sucks. One would expect it would be a simple copy and paste in the Disk Utility app but this is still far from reality.

Last year I wrote how I managed to clone my macOS system under Catalina. The main trick was to create a DMG file with multiple volumes, mount it on target machine and drop to command-line to do asr restore from synthetised disk while avoiding possible pitfalls.

The good news is that Apple devs definitely worked on improving this under Big Sur and added some documentation (see man asr). But I didn't understand it fully on first read. Maybe someone could explain how is this supposed to work?

davidalger

Enable macOS Server Performance Mode

Performance mode changes the system parameters of your Mac. These changes take better advantage of your hardware for demanding server applications.

A Mac with macOS Server that needs to run high-performance services can turn on performance mode to dedicate additional system resources for server applications. Note, however, that performance mode can be enabled even without macOS Server being installed to achieve similar benifits for other high-performance services.

sudo nvram boot-args="serverperfmode=1 $(nvram boot-args 2>/dev/null | cut -f 2-)"
sudo reboot

Reference: https://support.apple.com/en-us/HT202528.

jonathantneal

#!/bin/sh

# Set the macOS installer path as a variable
MACOS_INSTALLER="/Applications/$(ls /Applications | grep "Install macOS")"
MOUNT_POINT="$MACOS_INSTALLER/Contents/SharedSupport"
echo "macOS installer is \"$MACOS_INSTALLER\""

# Set the target disk as a variable
TARGET=$(diskutil info "$(bless --info --getBoot)" | awk -F':' '/Volume Name/ { print $2 }' | sed -e 's/^[[:space:]]*//')
echo "Target disk is \"$TARGET\""

jonaballe

I'm a new 1Password user and recently tried to export all my passwords saved in iCloud Keychain to import them in 1Password. Unfortunately, none of the existing recipes worked for me, because moving the saved passwords from iCloud Keychain to a local keychain seems to be broken as of today (28 Aug 2018). So I came up with a different method.

This method works entirely using AppleScript, and only for website passwords (not for other kinds of logins such as file servers, etc.). Basically, the script toggles back and forth between Safari's Preferences window and TextEdit, copying each username and password combination via the clipboard.

ttscoff

#!/usr/bin/ruby
# Brett Terpstra <http://brettterpstra.com>

=begin 
Example:
> file1@2x%%ohc.png
=> Converts png to jpeg, creates 1x and 2x versions, optimizes both with jpegoptim

Available directives:

erikng

#!/usr/bin/python

# For mojave only
# In order for this to work, you will need to go to System Preferences in Mojave -> Security & Privacy -> Privacy -> Full Disk Access and grant Terminal.app permissions

import sqlite3
conn = sqlite3.connect('/var/db/SystemPolicyConfiguration/KextPolicy')
c = conn.cursor()
query = 'SELECT * FROM kext_policy'
c.execute(query)

rtrouton

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 (including automatically provisioning 
the user home folder) or check the status of a new-to-10.13 security feature named SecureToken.

SecureToken is a user attribute like password type or user home location. SecureToken is not publicly 
documented by Apple so it is not possible to provide a full technical description, but in practice one 
needs only to know if a user has SecureToken or not. Having SecureToken set signifies that a user can 
unlock a FileVault-encrypted volume. Without the SecureToken bit on a user account, that user will not 

ttscoff

#!/bin/bash
# Logging utility that simplifies user of bash logger command

# # First source the script
# source ~/scripts/logr.bash

# # Start the logger, generates log name from scripts filename
# logr start
# # or define your own
# logr start LOG_NAME

rtrouton

#!/usr/bin/python
#
# getosversionfromdmg.py
#
# Copyright (c) 2014 The Regents of the University of Michigan
#
# Retrieves the OS version and build from the InstallESD.dmg contained in
#    a typical "Install (Mac) OS X <Name>.app" bundle.
#
# To run:

pudquick

# Only tested on OSX 10.11.5

import objc
from Foundation import NSBundle
Metadata_bundle = NSBundle.bundleWithIdentifier_('com.apple.Metadata')

functions = [
             ('_MDCopyExclusionList', b'@'),
             ('_MDSetExclusion', b'@@I'),
            ]