redanium

This can reduce files to ~15% of their size (2.3M to 345K, in one case) with no obvious degradation of quality.

ghostscript -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

Other options for PDFSETTINGS:

/screen selects low-resolution output similar to the Acrobat Distiller "Screen Optimized" setting.
/ebook selects medium-resolution output similar to the Acrobat Distiller "eBook" setting.
/printer selects output similar to the Acrobat Distiller "Print Optimized" setting.
/prepress selects output similar to Acrobat Distiller "Prepress Optimized" setting.

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

Introduction

Installing Huawei E3531 Surf Stick on Linux

May be a valuable insight for more modern surf sticks like Huawei E8231 and the likes ...

Linux is currently Ubuntu, Debian or Raspbian should be similar

The problem

This Huawei Surf stick has several USB mode. It appears first as CD-ROM-like device, so that Windows users can install their driver, then switches mode to appear as "something else". By defaut, this is a network card (virtually connected to a router),

	from selenium import webdriver
	from selenium.webdriver.common.proxy import Proxy
	from selenium.webdriver.common.keys import Keys
	from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

	from selenium import webdriver
	from selenium.webdriver.chrome.options import Options
	import zipfile

	#!/bin/bash

	MONGO_DATABASE="your_db_name"
	APP_NAME="your_app_name"

	MONGO_HOST="127.0.0.1"
	MONGO_PORT="27017"
	TIMESTAMP=`date +%F-%H%M`
	MONGODUMP_PATH="/usr/bin/mongodump"
	BACKUPS_DIR="/home/username/backups/$APP_NAME"

	import QtQuick 2.0

	/**
	* adapted from StackOverflow:
	* http://stackoverflow.com/questions/26879266/make-toast-in-android-by-qml
	*/

	/**
	* @brief An Android-like timed message text in a box that self-destroys when finished if desired
	*/

	// main.js for Electron
	var app = require("app"),
	BrowserWindow = require("browser-window");

	app.on("window-all-closed", function() {
	app.quit();
	})

	var mainWindow = null;
	app.on("ready", function() {

	//
	// Simple example of using net.Socket but here we capture the
	// right events and attempt to re-establish the connection when
	// is is closed either because of an error establishing a
	// connection or when the server closes the connection.
	//

	// Requires
	var net = require('net');



	Yeah, this all got outmoded when serious dependency problems with Tabula were removed.

	No need to use this. Get Tabula directly. http://tabula.nerdpower.org/

	http://plainoldstan.blogspot.hk/2010/11/wix-installing-and-uninstalling-windows.html:

	<?xml version="1.0" encoding="UTF-8"?>
	<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
	<Product Id="9c78f041-c29e-4d80-8d23-e4839e74038c" Name="StansApp"
	Language="1033" Version="1.0.0.0"
	Manufacturer="Standa" UpgradeCode="b1adfc21-927f-470a-ac87-a5019c84a253">
	<Package InstallerVersion="200" Compressed="yes" />
	<Media Id="1" Cabinet="media1.cab" EmbedCab="yes" />
	<Directory Id="TARGETDIR" Name="SourceDir">