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Gistの使い方のメモ

Gistを使い始めて気がついた点をメモした。 Gistはこのようなメモや短いコードをバージョン管理しながら公開するのに便利。

特にこのメモでは、画像を同一ディレクトリに置いて、 それGFMファイル内に挿入する方法を解説。

このメモにはgitコマンドの使い方の解説はない。 このメモは随時更新される予定。

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package com.example

import liquibase.Contexts;
import liquibase.LabelExpression;
import liquibase.Liquibase;
import liquibase.database.Database;
import liquibase.database.DatabaseFactory;
import liquibase.database.jvm.JdbcConnection;
import liquibase.resource.FileSystemResourceAccessor;
import org.jooq.DSLContext;

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Install Android SDK on macOS

Install homebrew https://brew.sh/

brew cask install homebrew/cask-versions/adoptopenjdk8
brew cask install android-sdk

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Install and Create Emulators using AVDMANAGER and SDKMANAGER

About

• The goal of this gist is to quickly pre-install a range of system images to provide our project teams the ability to run emulators on a range of API levels, from API 19 to API 28.
  • These can be run locally or on the base build agent.
• Note: X86 is the fastest architecture for emulators, though x86_64 would probably be better to test against because most phones are 64 bit now.
• We create two sets of emulators here, one set with pixel hardware emulation and one set with default oem emulation.

See: Google Documentation on Start the emulator from the command line for more info

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#!/bin/sh

# To run, download the script or copy the code to a '.sh' file (for example 'fluttercleanrecursive.sh') and run like any other script:
#   sh ./fluttercleanrecursive.sh
# or
#   sudo sh fluttercleanrecursive.sh

echo "Flutter Clean Recursive (by jeroen-meijer on GitHub Gist)"
echo "Looking for projects... (may take a while)"

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window._data = [
	{
		"store": "Atasehir",
		"quotainfo" :[
			{
				"timeslot": "09:00 - 10:00",
				"capacity": 10,
				"filled": 10
			},
			{

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Copyright (c) 2016, Tom May

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:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTH

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tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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com.sun.management:type=DiagnosticCommand
com.sun.management:type=HotSpotDiagnostic
java.lang:name=CodeCacheManager,type=MemoryManager
java.lang:name=Code Cache,type=MemoryPool
java.lang:name=Compressed Class Space,type=MemoryPool
java.lang:name=G1 Eden Space,type=MemoryPool
java.lang:name=G1 Old Generation,type=GarbageCollector
java.lang:name=G1 Old Gen,type=MemoryPool
java.lang:name=G1 Survivor Space,type=MemoryPool
java.lang:name=G1 Young Generation,type=GarbageCollector

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Kafka Topics

List existing topics

bin/kafka-topics.sh --zookeeper localhost:2181 --list

Purge a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --config retention.ms=1000

... wait a minute ...

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --delete-config retention.ms