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@Kartones
Kartones / postgres-cheatsheet.md
Last active April 24, 2025 10:22
PostgreSQL command line cheatsheet

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

  • -E: will describe the underlaying queries of the \ commands (cool for learning!)
  • -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)
@danharper
danharper / background.js
Last active April 21, 2025 04:10
Bare minimum Chrome extension to inject a JS file into the given page when you click on the browser action icon. The script then inserts a new div into the DOM.
// this is the background code...
// listen for our browerAction to be clicked
chrome.browserAction.onClicked.addListener(function (tab) {
// for the current tab, inject the "inject.js" file & execute it
chrome.tabs.executeScript(tab.ib, {
file: 'inject.js'
});
});
@elberskirch
elberskirch / jekyll-deployment.md
Last active January 16, 2019 03:06
Capistrano deployment for jekyll

introduction

This is a short rundown for setting up deployment for a jekyll blog using a self-hosted git repository and a vserver running nginx. Deployment is done with capistrano (version 3).

Github is probably the most common and most convenient way to host your code for your jekyll blog, but sometimes you might want to keep everything under your own control or you're just curious what barebones git does for you.

setting up the git repository

For setting up a git repository on a linux machine I used this guide. A short wrapup:

  • add a git user
@barnes7td
barnes7td / sublime_setup.md
Last active January 9, 2025 20:33
Sublime Terminal Setup

Setup Terminal for Sublime Shorcut "subl":

Open terminal and type:

1. Create a directory at ~/bin:

mkdir ~/bin

2. Copy sublime executable to your ~/bin directory:

@shunchu
shunchu / convert-seconds-into-hh-mm-ss-in-ruby.rb
Created July 25, 2012 07:58
Convert seconds into HH:MM:SS in Ruby
t = 236 # seconds
Time.at(t).utc.strftime("%H:%M:%S")
=> "00:03:56"
# Reference
# http://stackoverflow.com/questions/3963930/ruby-rails-how-to-convert-seconds-to-time
@visnup
visnup / lock.css
Created May 5, 2012 20:31
"lock" orientation of a website for mobile (iPad, iPhone)
/* if portrait mode is detected, rotate the entire site -90 degrees to hint rotating to landscape */
@media (orientation: portrait) {
body {
-webkit-transform: rotate(-90deg);
-moz-transform: rotate(-90deg);
-o-transform: rotate(-90deg);
-ms-transform: rotate(-90deg);
transform: rotate(-90deg);
}
}

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

@mildred
mildred / transform_layouts.rb
Created December 13, 2011 15:55
Jekyll plugin to have layouts transformed by Converters as well, taken from https://github.com/mojombo/jekyll/pull/351
module Jekyll
class Layout
alias old_initialize initialize
def initialize(*args)
old_initialize(*args)
self.transform
end
@wolfeidau
wolfeidau / sass_converter.rb
Created May 7, 2011 02:43
Sass plugin for Jekyll
module Jekyll
# Sass plugin to convert .scss to .css
#
# Note: This is configured to use the new css like syntax available in sass.
require 'sass'
class SassConverter < Converter
safe true
priority :low
def matches(ext)