nad2000

# Collect data until ^C:
while true ; do df /data ; sleep 1 ; done | tee storage.txt

# Extract "Used field":
grep /dev/md0 storage.txt  | sed 's/  */\t/g' | cut -f4

nad2000

# 1. download and install PostgreSQL 9.3  (remember the password your entered)
# 2. install PostGIS using Stackbuilder (it's a part of PostgreSQL 9.3 installation)

# Make sure postgeres is started

# Run script that fix issues with choice_web:
psql -U postgres -d postgres -f choice_web_migr.sql

# Load the dump (that might take upto 10min):
psql -U postgres -f choice_web_02_21_2014.dump -d choice_web 2>choice_web_log.err

nad2000

echo 'task goes here' | cat - todo.txt > temp && mv temp todo.txt
# OR
cat <(echo "task goes here") todo.txt > todo_new.txt
# OR
echo -e "task goes here\n$(cat todo.txt)" > todo.txt
# OR
sed -i '1s/^/task goes here\n/' todo.txt
# OR
sed -i '1itask goes here' todo.txt

nad2000

def fib(n):
    if n <= 2:
        return 1
    else:
        return fib(n-1) + fib(n-2)

nad2000

# drops first portion of a path $1 if length is greater than $2
function __droppath {
    if [[ ${#1} -gt $2 ]]; then
        p=$1
        while [ ${#p} -gt $2 ]; do
            p="/"$(echo "$p"|cut -d"/" -f3-)
        done
        echo "..."$p
    else
        echo $1

nad2000

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

nad2000

egrep "(\*\*\*\*|excluding)" test.log  | sed '/tps/ s/tps = \([.0-9]*\) .*/\1/; /uview/ s/ uview\([0-9]*\)/\1/' |  sed -n '/\**/ {N;s/\n/,/;N;s/\n/,/;s/\**//p}'

## With loading into PostgreSQL:

# Create table:
psql -d 5 -c "create table test_output( id int, tps1 numeric, tps2 numeric)"

# Extract and load data:
egrep "(\*\*\*\*|excluding)" test.log  | sed '/tps/ s/tps = \([.0-9]*\) .*/\1/; /uview/ s/ uview\([0-9]*\)/\1/' |  sed -n '/\**/ {N;s/\n/,/;N;s/\n/,/;s/\**//p}' | psql -d 5 -c "TRUNCATE TABLE test_output; COPY test_output FROM STDIN (FORMAT csv, DELIMITER ',', HEADER false)"

nad2000

-- PostgreSQL
DROP TABLE IF EXISTS uview5_uni;
CREATE TABLE uview5_uni AS
SELECT
	start_time,
	CASE e WHEN  1 THEN mac_addr_1 ELSE mac_addr_2 END src_mac_addr,
	CASE e WHEN  1 THEN mac_addr_2 ELSE mac_addr_1 END des_mac_addr,
	CASE e WHEN  1 THEN byte_count_1 ELSE byte_count_2 END byte_count,
	CASE e WHEN  1 THEN packet_count_1 ELSE packet_count_2 END packet_count,
	last_time,

nad2000

#%% DATA IMPORTING AND VISUALIZATION

from urllib2 import urlopen
from contextlib import closing
from os.path import basename


def download_file(url, name=None):
    with closing(urlopen(url)) as u, open(name if name else basename(url), 'w') as f:
        f.write(u.read())

nad2000

# -*- coding: utf-8 -*-
# Original from:
# http://pyvideo.org/video/1780/transforming-code-into-beautiful-idiomatic-python

colors = ['red', 'green', 'blue', 'yellow']
names = ['apple', 'carrot', 'melon']

for color in reversed(colors):
    print color