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Jon Keam jkeam

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I do stuff with stuff.

48 followers · 70 following

Red Hat
Arlington, VA
http://blog.jonkeam.com
@jonnyman9

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jkeam / zoos_and_animals.viz

Created March 22, 2017 20:38

Zoos and Animals

	digraph SimplestDiagrams {
	Zoo1
	"Zoo1" -> "Cat"
	"Zoo1" -> "Dog"

	Zoo2
	"Zoo2" -> "Cat"
	"Zoo2" -> "Crow"

	Zoo3

jkeam / replace_expo_urls.rb

Last active August 1, 2017 06:54

Ruby script to update expo config files that need to be updated as you change networks. This script will update the urls expo is using to serve up the JS resources. This configs should be auto updated during the build process, but for some reason it sometimes does not work. Running this script will fix those urls.

	#!/usr/bin/env ruby
	require 'json'
	require 'rexml/document'
	include REXML

	def fix_exshell_json(filename, url)
	json_file = JSON.parse File.read(filename)
	json_file['developmentUrl'] = url
	File.open(filename, 'w') { \|file\| file.puts(json_file.to_json) }
	end

jkeam / escape_newline.sh

Created October 12, 2017 16:57

I used this when taking multiline configs, like rsa keys to a single line that .env files can use.

awk '{printf "%s\\n", $0}' file

jkeam / python_installation_notes

Created November 25, 2017 06:30

Installing Python

	Install These Tools:
	https://github.com/pyenv/pyenv
	https://github.com/pyenv/pyenv-virtualenv


	Then in .zshrc add:
	eval "$(pyenv init -)"
	eval "$(pyenv virtualenv-init -)"

jkeam / getcert.sh

Last active January 25, 2018 18:37

Get SSL Cert

	#!/bin/sh
	#
	# usage: getcert.sh remote.host.name [port]
	# eg) getcert.sh api.mailgun.net
	#
	RHOST=$1
	RPORT=${2:-443}

	# see cert
	echo -n \| openssl s_client -connect ${RHOST}:${RPORT} \| sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p'

jkeam / mac_ip.sh

Created December 25, 2018 04:50

Get My Mac IP

	#!/bin/bash

	#ifconfig en0 \| grep 'inet ' \| awk '{print $2}'
	ipconfig getifaddr en0

jkeam / setup_postgres.sh

Created February 20, 2019 02:41

Postgres Setup

	# install postgres
	sudo apt update
	sudo apt install postgresql postgresql-contrib libpq-dev

	# login as postgres user
	sudo -i -u postgres

	# log into psql shell
	psql

jkeam / heroku_postgres_table_dump.sh

Created February 25, 2019 15:12

Heroku Table Dump

	# get database info
	heroku config:get DATABASE_URL -a app_name

	# dump command
	pg_dump --column-inserts --no-acl --no-owner -h host_name -U postgres_user -t table_name --data-only db_name > output_filename.dump

jkeam / show_codesigning_identities.sh

Created May 12, 2019 16:06

A lot of times building things on Macs require you to use to a codesigning identity. This quick one-liner will show you your code signing identities.

	#!/bin/bash

	security find-identity -v -p codesigning

jkeam / encode_base64.sh

Created May 29, 2019 01:36

Encode a file into a base 64 format

	#!/bin/bash

	# -A doesn't print out newlines and entire file will be on a single line.
	openssl base64 -A -in ./input_file -out ./output_file

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