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Managing iOS Simulators

$ xcrun simctl list --json

$ xcrun simctl delete unavailable

国内从 Docker Hub 拉取镜像有时会遇到困难，此时可以配置镜像加速器。Docker 官方和国内很多云服务商都提供了国内加速器服务。

Dockerized 实践 https://github.com/y0ngb1n/dockerized

Ubuntu 16.04+、Debian 8+、CentOS 7+

Install TigerVNC -

$ sudo apt install tigervnc-standalone-server

Configure VNC Server by running

There are two metrics that are important to consider when discussing the size of Docker images.

Compressed size - This is often referred to as the wire size. This affects how fast/slow images can be pulled from a registry. This impacts the first run experience on machines where images are not cached.
Uncompressed size - This is often referred to as the size on disk. This affects how much local storage is required to support your Docker workloads.

The example commands shown below will work on Windows, MacOS, and Linux.

A collection of commands that change the Arc Browser icon on macOS.

Theme	Command
Candy Arc	`defaults write company.thebrowser.Browser currentAppIconName candy`

	/*
	* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* https://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software

	/* ; _____________________________________________________________________________
	; Improved Accelerated Scrolling By Flowgun
	; original Accelerated Scrolling: V1.3 By BoffinbraiN

	; Major Changes (v1.5):
	; - Reloading at Logon/unlocking: The mouse hook can get
	; released when the session is locked/closed. Now the
	; script reloads itself to rehook the ScrollWheel hotkeys
	; - changed the default acceleration values.
	; Major Changes (v1.4):

	@echo off & setlocal
	if "%~1"=="" exit /b
	if /i "%~x1" neq ".bat" if /i "%~x1" neq ".cmd" exit /b
	<"%~1" ((for /l %%N in (1 1 8) do pause)>nul&findstr "^">"%~n1__%~x1")

	adb shell am
	Activity manager (activity) commands:
	help
	Print this help text.
	start-activity [-D] [-N] [-W] [-P <FILE>] [--start-profiler <FILE>]
	[--sampling INTERVAL] [--streaming] [-R COUNT] [-S]
	[--track-allocation] [--user <USER_ID> \| current] <INTENT>
	Start an Activity. Options are:
	-D: enable debugging
	-N: enable native debugging

	adb shell am
	usage: am [subcommand] [options]
	usage: am start [-D] [-W] [-P <FILE>] [--start-profiler <FILE>]
	[--R COUNT] [-S] [--opengl-trace] <INTENT>
	am startservice <INTENT>
	am force-stop <PACKAGE>
	am kill <PACKAGE>
	am kill-all
	am broadcast <INTENT>
	am instrument [-r] [-e <NAME> <VALUE>] [-p <FILE>] [-w]