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David Rasch drasch

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drasch / count-files-by-extension.rb
Created September 24, 2012 14:06
Count files by extensicount-files-by-extension.rbon
require 'rubygems'
require 'activesupport'
ct = Hash.new(0)
while gets
ma = $_.match %r/\.(\w{2,10})$/
ct[ma[1]] += 1 if ma
end
y ActiveSupport::OrderedHash[ct.sort_by {|k,v| v}].reject {|k,v| v<50}
@drasch
drasch / fix_sql_injection.rb
Created January 3, 2013 03:47
# Monkey patch for CVE-2012-2695 on Rails 2.3.14
# put this file in your config/initializers directory
# comments/corrections: https://gist.github.com/2921706
#
# minor modification for rails 2.2 by DCR
# Ruby on Rails SQL Injection
# based on a patch from @presidentbeef
# https://rubyonrails-security.googlegroups.com/attach/aee3413fb038bf56/2-3-sql-injection.patch?view=1&part=3
@drasch
drasch / results.txt
Last active December 11, 2015 05:08
testing ruby vs php function call performance
## Ruby
$ ruby test.rb #1.8.7
Timing ruby_no_func - 11.53991
Timing ruby_func - 24.726644
real 0m37.154s
$ ruby test.rb #1.9.3
Timing ruby_no_func - 5.672002329
Timing ruby_func - 10.549024467
@drasch
drasch / data_frame.py
Created October 4, 2013 20:36
df = pd.DataFrame(np.random.randn(10000), index=range(0,10000), columns=['length'])
df.index.name = 'id'
df2 = pd.DataFrame.from_dict({'selector':randint(0,2, 20000), 'df_index': randint(1,10000,20000)})
# df_index is a foreign key into df.index
df['in_selector_0'] = np.asarray(np.where(df.reset_index().id.isin(df2[df2.selector.between(0,0.1)].df_index),'y', 'n'))
df.in_selector_0.value_counts()
@drasch
drasch / hdf5_python_octave.md
Last active December 28, 2015 06:19

Octave to Python

Octave

octave:1> a = rand(10,10)
a =

  0.859429   0.895490   0.366489   0.209172   0.115529   0.212583   0.346897   0.737492   0.520998   0.765509
  0.458690   0.832058   0.600122   0.703332   0.339640   0.579577   0.330600   0.228996   0.669966   0.292111
  0.690453   0.306055   0.040796   0.379313   0.295865   0.064997   0.925082   0.709484   0.145930   0.787097

0.995525 0.717836 0.641777 0.189449 0.610176 0.976574 0.316809 0.709783 0.588515 0.694197

@drasch
drasch / keybase.md
Created April 8, 2016 17:24

Keybase proof

I hereby claim:

  • I am drasch on github.
  • I am drasch (https://keybase.io/drasch) on keybase.
  • I have a public key whose fingerprint is 175C 04DA 392D 2401 1EAA 6D1E 6F84 0576 ECB3 D1C7

To claim this, I am signing this object:

@drasch
drasch / lenovo.txt
Last active February 6, 2018 20:34
boxstarter
# Description: Boxstarter Script
# Author: Jess Frazelle <jess@linux.com>
# Last Updated: 2017-09-11
#
# Install boxstarter:
# . { iwr -useb http://boxstarter.org/bootstrapper.ps1 } | iex; get-boxstarter -Force
#
# You might need to set: Set-ExecutionPolicy RemoteSigned
#
# Run this boxstarter by calling the following from an **elevated** command-prompt:
@drasch
drasch / linux_setup.md
Created December 14, 2020 01:09 
- X windows key
- X GPG
- X ssh keys
- X AWS credentialsls


Folders:

- X Downloads
@drasch
drasch / matt.py
Created February 12, 2021 19:45
columns = [["apples", "oranges", "pears", "eggplant"],
["red", "blue", "green"],
["joey", "matt", "david", "someone else"]]
columns = {"fruit": ["apples", "oranges", "pears", "eggplant"],
"colors": ["red", "blue", "green", "purple"],
"names": ["joey", "matt", "david", "someone else"]}
widths = [
max([len(entry) for entry in column])
@drasch
drasch / backup.md
Created March 2, 2021 20:25

Today 2021-03-02: I tried using restic to generate backups (perhaps frequently) on my Ubuntu 20.04 laptop. I used a command like that below.

# install
brew install restic

# initialize the repo
restic init -r Backup/home

# perform a backup; I did this a few times for testing