LiuJi-Jim

var hrtime = (function(){
  if (typeof window !== 'undefined'){
    // browser
    if (typeof window.performance !== 'undefined' && typeof performance.now !== 'undefined'){
      // support hrt
      return function(){
        return performance.now();
      };
    }else{
      // oh no..

cyrilis

dir="."   #Set the default temp dir
tmpA1="$dir/spectrumhist_1_$$.png"
tmpB1="$dir/spectrumhist_1_$$.cache"
trap "rm -f $tmpA1 $tmpB1; exit 0" 0   #remove temp files
trap "rm -f $tmpA1 $tmpB1; exit 1" 1 2 3 15  #remove temp files
if [ $# -eq 2 ]
	then
	colors=$2
else
	colors=8

zhenyi2697

#!/usr/bin/python

# demo from here: http://pymotw.com/2/urllib2/index.html#uploading-files

import itertools
import mimetools
import mimetypes
from cStringIO import StringIO
import urllib
import urllib2

kmassada

Libvirt

yum group install -y "Development Tools"
yum -y install qemu-kvm libvirt virt-install bridge-utils libvirt-devel  libxslt-devel libxml2-devel libvirt-devel libguestfs-tools-c

echo "net.ipv4.ip_forward = 1"|sudo tee /etc/sysctl.d/99-ipforward.conf
sysctl -p /etc/sysctl.d/99-ipforward.conf

acgotaku

// ==UserScript==
// @name            百度网盘aria2导出工具
// @author          acgotaku311
// @description 一个方便吧百度网盘的Aria2rpc导出的脚本。
// @encoding           utf-8
// @include     http://*n.baidu.com/s/*
// @include     http://*n.baidu.com/disk/home*
// @include     http://*n.baidu.com/share/link*
// @include     https://*n.baidu.com/s/*
// @include     https://*n.baidu.com/disk/home*

rsim

Get the current Unix timestamp (seconds from 1970-01-01T00:00:00Z) in SQL.

• MySQL: UNIX_TIMESTAMP()
• PostgreSQL: CAST(EXTRACT(epoch FROM NOW()) AS INT)
• MS SQL: DATEDIFF(s, '1970-01-01', GETUTCDATE())
• Oracle: (CAST(SYS_EXTRACT_UTC(SYSTIMESTAMP) AS DATE) - DATE'1970-01-01') * 86400

kennwhite

Howto: Install Alpine Linux 3.3 on VirtualBox OSX

• Latest Standard ISO version x86_64 is recommended (http://alpinelinux.org/downloads/)
• Create new VM ("Linux 2.6 / 3.x / 4.x (64-bit)")
• 1 CPU w/ 512BM RAM and 1 GB default (VDI) disk is more than sufficient
• Default networking (NAT)
• Boot and add Alpine ISO as attached virtual install media
• Default root password is blank (though note - ssh PermitRootLogin defaults to disallow blank passwords and: prohibit-password; switch to yes for Host ssh)
• Run setup-alpine
• Defaults are fine, but you do want "sys" disk setup to sda, y to confirm

gornostal

Python 2.7. Unicode Errors Simply Explained

I know I'm late with this article for about 5 years or so, but people are still using Python 2.x, so this subject is relevant I think.

Some facts first:

• Unicode is an international encoding standard for use with different languages and scripts
• In python-2.x, there are two types that deal with text.
  1. str is an 8-bit string.

2. unicode is for strings of unicode code points.

darcyliu

#!/bin/bash
# Install Spark on CentOS 7
yum install java -y
java -version

yum install wget -y
wget http://downloads.typesafe.com/scala/2.11.7/scala-2.11.7.tgz
tar xvf scala-2.11.7.tgz
sudo mv scala-2.11.7 /usr/lib
sudo ln -s /usr/lib/scala-2.11.7 /usr/lib/scala

magnetikonline

IE 7/8/9/10/11 Virtual machines from Microsoft

We have moved: https://github.com/magnetikonline/linuxmicrosoftievirtualmachines

Due to the popularity of this Gist, and the work in keeping it updated via a Gist, all future updates will take place at the above location. Thanks!