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Octave CheatSheet

GNU Octave is a high-level interpreted language, primarily intended for numerical computations.
(via GNU Octave)

	#!/bin/bash

	trap 'echo "# $BASH_COMMAND";read' DEBUG

	echo line1
	echo line2

	echo line3

	echo "Hello World";

	Option1:
	1. install json server

	npm install -g json-server

	or for local install without -g

	npm install json-server

	2. create file with "db" db.json

	version: '3.8'

	services:
	dynamodb:
	container_name: dynamodb
	image: amazon/dynamodb-local:latest
	ports:
	- "8000:8000"

	localstack:

	list.stream()
	.collect(Collectors.collectingAndThen(
	Collectors.groupingBy(A::getId, Collector.of(
	() -> new A<>(null, 0d, null), (acc, a) -> {
	acc.setId(a.getId());
	acc.setQuant(Double.sum(acc.getQuant(), a.getQuant()));
	acc.setType(a.getType());
	}, (a1, a2) -> {
	a1.setQuant(Double.sum(a1.getQuant(), a2.getQuant()));
	return a1;

	1. Найти что примаплено к текущей папке. Например смотрим что примаплено к папке images
	sudo grep -h images /proc//task//mountinfo \| sort -u

	2. Стандартные пути томката
	/usr/share/tomcat
	/var/lib/tomcat
	Конфиги
	/etc/tomcat
	Логи
	/var/log/tomcat

	//на другой стороне может быть ничего, а может @OneToMany
	@ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.MERGE, CascadeType.DETACH, CascadeType.REFRESH})
	@OnDelete(action = OnDeleteAction.CASCADE)
	@JoinColumn(name = "station_id", nullable = false)
	private StationEntity parent;

	/======================================/
	//на другой стороне
	// @ManyToOne
	// @JoinColumn(name = "task_id", nullable = false)

	1.Список запущенных докер образов
	docker ps

	CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
	444df81fb674 os-registry.ru/gkc/sc-db:1.0.0 "docker-entrypoint.s…" 22 hours ago Up 22 hours 0.0.0.0:5433->5432/tcp sc-db

	2. Остановить контейнер
	docker stop <container_name>
	где <container_name> из п.1 например sc-db

	FTP
	openssl s_client -connect myftpserver.office:21 -starttls ftp

	To test http SSL connection type:
	openssl s_client -connect www.sslshopper.com:443 -CApath /etc/ssl/certs/

	Additionally path to certificates has been added (to prevent broken chain issues).

	To test FTPS connection use this command (thanks for test FTPS server at rebex.net):
	openssl s_client -connect test.rebex.net:990 -CApath /etc/ssl/certs/