darwin

Today I wanted to move existing APFS-resident macOS Catalina installation to a new disk. I upgraded my late 2014 Mac Mini with a shiny new 1TB SSD. This took way too many hours of my life I will never get back. Hope this saves some time to you.

Good news:

1. it is possible to create a DMG image from existing APFS container with macOS Catalina installation including metadata needed for complete restore (the DMG contains OS, OS Data, Preboot, Recovery and VM volumes)
2. it is possible to restore this DMG image into empty APFS container and get a bootable copy of the original system

This information is relevant for Catalina (I'm currently running macOS 10.15.1).

rgrove

/**
This is an ECMA-404 compliant JSON parser written in pure JS, with nice error
reporting. It's not super useful since it's ridiculously slow compared to
`JSON.parse()`, but I had fun writing it.

ISC License

Copyright (c) 2019 Ryan Grove <[email protected]>

Permission to use, copy, modify, and/or distribute this software for any purpose

guycalledseven

# after appcleaner does his magic, do this

sudo rm -rf "/Library/Application Support/Paragon Software/"
sudo rm /Library/LaunchDaemons/com.paragon-software.installer.plist
sudo rm /Library/LaunchDaemons/com.paragon-software.ntfs.loader.plist
sudo rm /Library/LaunchDaemons/com.paragon-software.ntfsd.plist
sudo rm /Library/LaunchAgents/com.paragon-software.ntfs.notification-agent.plist
sudo rm -rf /Library/Filesystems/ufsd_NTFS.fs/
sudo rm -rf /Library/PrivilegedHelperTools/com.paragon-software.installer
sudo rm -rf /Library/Extensions/ufsd_NTFS.kext/

greencoder

# Note: You MUST have curl 7.47+ with http/2 support compiled in

curl -v \
-d '{"aps":{"alert":"<message>","badge":42}}' \
-H "apns-topic: <bundle id>" \
-H "apns-priority: 10" \
--http2 \
--cert <certificate file> \
https://api.development.push.apple.com/3/device/<device token>

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

JohnMorales

#!/bin/bash

export PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin
docker_pid=$(cat /var/run/docker.pid)
gdb -p $docker_pid <<< "$( ls /proc/$docker_pid/fd -l --time-style=+'%s' | grep -E 'deleted' | awk '{ printf("p close(%s)\n", $7)}')" >/dev/null


#closing evenfds that do not have a corresponding memory.oom_control
eventfds="$(for eventfd in $(ls /proc/$docker_pid/fd -l --time-style=+'%s' | grep -E 'eventfd'| awk '{print $7}'); do 
        memory_pid=$((eventfd - 1))

Avaq

const I  = x => x
const K  = x => y => x
const A  = f => x => f (x)
const T  = x => f => f (x)
const W  = f => x => f (x) (x)
const C  = f => y => x => f (x) (y)
const B  = f => g => x => f (g (x))
const S  = f => g => x => f (x) (g (x))
const S_ = f => g => x => f (g (x)) (x)
const S2 = f => g => h => x => f (g (x)) (h (x))

davoclavo

emacs --daemon to run in the background. emacsclient.emacs24 <filename/dirname> to open in terminal

NOTE: "M-m and SPC can be used interchangeably".

• Undo - C-/
• Redo - C-?
• Change case: 1. Camel Case : M-c 2. Upper Case : M-u

3. Lower Case : M-l

corny

#!/bin/bash -e
#
# Improved backup script for Ubiquiti UniFi controller
# original source: http://wiki.ubnt.com/UniFi#Automated_Backup
#

# must contain:
# username=<username>
# password=<password>
source ~/.unifi-backup

solyarisoftware

# Encoding: utf-8

#
# idle.rb
# 
# goal:
#   Ruby script to test how to fetch IMAP mails with IDLE mode.
#   IMAP IDLE allow a sort of "push" / "real-time" delivery.
#
#   I used the script to test LATENCY (end-to-end delivery times)