Since v8.1 (May 2018), Vim has shipped with a built-in terminal. See https://vimhelp.org/terminal.txt.html or type :help terminal for more info.
Why use this? Mainly because it saves you jumping to a separate terminal window. You can also use Vim commands to manipulate a shell session and easily transfer clipboard content between the terminal and files you're working on.
| #!/usr/bin/env sh | |
| ## | |
| # This is script with usefull tips taken from: | |
| # https://github.com/mathiasbynens/dotfiles/blob/master/.osx | |
| # | |
| # install it: | |
| # curl -sL https://raw.github.com/gist/2108403/hack.sh | sh | |
| # |
| --colour | |
| -I app |
PostgreSQL has various types of replication available and it could be a little bit confusing to figure out what has to be done to just configure a simple master-standby replicated database setup. Digging my way through documentation I decided to write my own little guide on how to setup simple replication in PostgreSQL 13.
Streaming replication works by streaming the contents of WAL (Write-Ahead Logging) file from one server to another. Each transaction is first written into the WAL file, so essentially every change on the primary server will be replicated on the standby server. Standby server could be used for read-only operations, but can't be written to. Ofcourse, transferring data over the network takes time and there is a small lag before data written to one server becomes available on the other. To guarrantee data consistency on both servers at the time of read operation we can enable synchronous replication mode. This way, datab
This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"
| $stack, $draws = [], {} | |
| def method_missing *args | |
| return if args[0][/^to_/] | |
| $stack << args.map { |a| a or $stack.pop } | |
| $draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :< | |
| end | |
| class Array | |
| def +@ |
| defmodule Model do | |
| schema "models" do | |
| field :foo, :string | |
| has_many :children, Model, foreign_key: :parent_id | |
| belongs_to :parent, Model, foreign_key: :parent_id | |
| end | |
| @doc """ | |
| Recursively loads parents into the given struct until it hits nil | |
| """ |
| URL=https://www.spinellis.gr/unix | |
| love: # Help: Create a file name love | |
| touch love | |
| money: # Help: Hit the jackpot | |
| yes $$ | fmt | head | |
| me a wizard: MOOC # Help: Become a Unix command-line wizard |
| class ApplicationController < ActionController::Base | |
| # Creates an accessor which is exposed to the view | |
| def self.view_accessor(*names) | |
| attr_accessor *names | |
| helper_method *names | |
| end | |
| end |
