alexsavio alexsavio

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

Signing VirtualBox Kernel Modules

These are the steps I followed enable VirtualBox on my laptop without disabling UEFI Secure Boot. They're nearly identical to the process described on [Øyvind Stegard's blog][blog], save for a few key details. The images here are borrowed from the [Systemtap UEFI Secure Boot Wiki][systemtap].

Install the VirtualBox package (this might be different for your platform).

src='https://download.virtualbox.org/virtualbox/rpm/fedora/virtualbox.repo'

	from time import sleep

	from timed_cache import Memoize


	def test_memoize():
	"""
	Test if the cached function results expires in the expected time.
	"""

	[alias]
	co = checkout
	br = branch
	ci = commit
	st = status
	unstage = reset HEAD --
	undo = reset --soft HEAD~1
	last = log -1 HEAD
	lg = log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%C
	reset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --branches

	// create a menu
	function onOpen() {
	var menuEntries = [ {name: "Create invoice", functionName: "CreateInv"}];
	var ss = SpreadsheetApp.getActiveSpreadsheet();
	ss.addMenu("Invoice Generator", menuEntries);
	}

	function CreateInv() {

	// specify doc template and get values from spread

	import os

	class InMemoryUserRepository(UserRepository):
	def __init__(self):
	self._items = []

	def add(self, user: User) -> User:
	self._items.append(user)

	def get(self, id: str) -> User:

	# An example of how to use AWS SNS with Python's boto
	# By Stuart Myles @smyles
	# http://aws.amazon.com/sns/
	# https://github.com/boto/boto
	#
	# Inspired by parts of the Ruby SWF SNS tutorial http://docs.aws.amazon.com/amazonswf/latest/developerguide/swf-sns-tutorial-implementing-activities-poller.html
	# And the Python SNS code in http://blog.coredumped.org/2010/04/amazon-announces-simple-notification.html and http://awsadvent.tumblr.com/post/37531769345/simple-notification-service-sns

	import boto.sns as sns
	import json

	## Fira Code with Flottflott

	atom-text-editor.editor {
	.syntax — string.syntax — quoted,
	.syntax — string.syntax — regexp {
	-webkit-font-feature-settings: “liga” off, “calt” off;
	}
	.syntax — source.syntax — js.syntax — jsx > .syntax — keyword.syntax — control.syntax — flow.syntax — js,
	.syntax — storage, .syntax — type .syntax — function {
	vertical-align: baseline;

	### Keybase proof

	I hereby claim:

	* I am alexsavio on github.
	* I am alexsavio (https://keybase.io/alexsavio) on keybase.
	* I have a public key whose fingerprint is 85F7 B4AC 2719 E0E6 C537 8E06 62A4 1CC0 45A2 9DF7

	To claim this, I am signing this object:

	#List unique values in a DataFrame column
	pd.unique(df.column_name.ravel())

	#Convert Series datatype to numeric, getting rid of any non-numeric values
	df['col'] = df['col'].astype(str).convert_objects(convert_numeric=True)

	#Grab DataFrame rows where column has certain values
	valuelist = ['value1', 'value2', 'value3']
	df = df[df.column.isin(value_list)]