Yannis Fragoulis fragoulis

Firewall

View which ports are open

iptables -vn -L

	-----------------------------------------------------------------
	-- PostgreSQL
	--

	SELECT last_value, is_called
	FROM :sequence

	-- If is_called is false, last_value is 1 and the next ID also 1.
	-- If is_called is true, the next ID is last_value + 1

	<?php

	/**
	* Generate datetime with timezone support and microsend precision.
	*
	* Example:
	* ```
	* $now = Datetime::now(); // generates YYYY-MM-DDTHH:MM:SS.MMMMMM
	* ```
	*

	<?php

	/**
	* Helper class.
	*
	* This class provides some static methods that are helpful with
	* postgres like manually manipulating sequences and dropping
	* tables cascaded.
	*
	* It also provides the ability to create a batch insert (COPY)

	{
	"font_size": 11,
	"open_files_in_new_window": true,
	"remember_full_screen": true,
	"rulers":
	[
	80
	],
	"tab_size": 4,
	"translate_tabs_to_spaces": false

	class Nanotime
	def in_seconds(now = ::Time.current)
	now.strftime("%s000000000")
	end

	def in_milliseconds(now = ::Time.current)
	now.strftime("%s%3N000000")
	end

	def in_microseconds(now = ::Time.current)

	[
	{ "keys": ["ctrl+shift+c"], "command": "toggle_comment", "args": { "block": false } }
	]

	<!doctype html>

	<html lang="en">
	<head>
	<meta charset="utf-8">

	<title>The HTML5 Herald</title>
	<meta name="description" content="The HTML5 Herald">
	<meta name="author" content="SitePoint">

	# Remove stopped containers
	docker rm $(docker ps -a -q)

	# Remove untagged images
	docker rmi $(docker images -a \| grep "^<none>" \| awk '{print $3}')

	bundle exec rbtrace -p $1 -e 'Thread.new{GC.start;require "objspace";io=File.open("/tmp/ruby-heap.dump", "w"); ObjectSpace.dump_all(output: io); io.close}'

	bundle exec rbtrace -p $1 -e 'Thread.new{require "memory_profiler"; MemoryProfiler.start}'
	bundle exec rbtrace -p $1 -e 'Thread.new{require "memory_profiler"; MemoryProfiler.stop.pretty_print(to_file: "/tmp/memory_profiler.log", detailed_report: true, scale_bytes: true)}'