yungookim / note.md

Created February 17, 2016 22:41 — forked from fyears/note.md

how to install scipy numpy matplotlib ipython in virtualenv

if you are using linux, unix, os x:

pip install -U setuptools
pip install -U pip

pip install numpy
pip install scipy
pip install matplotlib
#pip install PySide

yungookim / whiteboardCleaner.md

Created April 3, 2014 03:39 — forked from lelandbatey/whiteboardCleaner.md

Description

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

Results

yungookim / bootstrap.flatten.css

Created June 23, 2013 06:07 — forked from nodesocket/bootstrap.flatten.css

	/* Flatten das boostrap */
	.well, .navbar-inner, .popover, .btn, .tooltip, input, select, textarea, pre, .progress, .modal, .add-on, .alert, .table-bordered, .nav>.active>a, .dropdown-menu, .tooltip-inner, .badge, .label, .img-polaroid {
	-moz-box-shadow: none !important;
	-webkit-box-shadow: none !important;
	box-shadow: none !important;
	-webkit-border-radius: 0px !important;
	-moz-border-radius: 0px !important;
	border-radius: 0px !important;
	border-collapse: collapse !important;
	background-image: none !important;

yungookim / gist:5686565

Created May 31, 2013 17:35 — forked from chen206/gist:4030441

	#!/bin/bash
	#
	# Install Postgres 9.2 on a clean Ubuntu 12.04

	"""
	LC_ALL issue
	comment out the AcceptEnv LANG LC_* line in the remote /etc/ssh/sshd_config file.
	sudo apt-get install language-pack-en-base
	sudo dpkg-reconfigure locales
	comment out the SendEnv LANG LC_* line in the local /etc/ssh/ssh_config file.

yungookim / mailer.py

Created March 14, 2013 00:54 — forked from dbieber/mailer.py

	#!/usr/bin/python
	# Adapted from http://kutuma.blogspot.com/2007/08/sending-emails-via-gmail-with-python.html

	import getpass
	import smtplib
	from email.MIMEMultipart import MIMEMultipart
	from email.MIMEBase import MIMEBase
	from email.MIMEText import MIMEText
	from email import Encoders
	import os

yungookim / gist:4696082

Created February 2, 2013 04:09 — forked from smailq/gist:4599943

SELECT pg_terminate_backend(pg_stat_activity.procpid) FROM pg_stat_activity WHERE datname = '';

yungookim / latency.txt

Created June 1, 2012 00:12 — forked from jboner/latency.txt

Latency numbers every programmer should know

	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns
	Compress 1K bytes with Zippy 3,000 ns
	Send 2K bytes over 1 Gbps network 20,000 ns
	Read 1 MB sequentially from memory 250,000 ns
	Round trip within same datacenter 500,000 ns
	Disk seek 10,000,000 ns

yungookim / whereami.sh

Created July 1, 2011 12:14 — forked from pachacamac/whereami.sh

Wanna know where you are?

	#!/bin/bash
	echo -n "{\"version\": \"1.1.0\",\"host\": \"maps.google.com\",\"request_address\": true,\"address_language\": \"en_GB\", \"wifi_towers\": [`iwlist scan 2> /dev/null \| tr -d '\n' \| sed -e 's/Cell [0-9]* - Address: $[0-9A-Z:]$[^C]Channel:$[0-9]$[^S]Signal level=$[0-9-]$ dBm[^E]E[^E]ESSID:"$[^"]$"/\{"mac_address": "\1","signal_strength": \3,"age": 0,"channel": \2,"ssid": "\4"}/g' -e 's/[^{]{/{/' -e 's/}[^{]{/},{/g' -e 's/\}[^}]*$/\}/' `]}" \| curl -s -X POST -d @/dev/fd/0 http://www.google.com/loc/json

	# TIP: run with sudo for improved accuracy since iwlist can then provide more than the active hotspot