Patrick (Rick) Pearson pwpearson

🏠

Working from home

pwpearson at gmail

pwpearson / markdown.md

Created July 25, 2017 14:43 — forked from jonschlinkert/markdown-cheatsheet.md

A better markdown cheatsheet. I used Bootstrap's Base CSS documentation as a reference.

Typography

Headings from h1 through h6 are constructed with a # for each level:

# h1 Heading
## h2 Heading
### h3 Heading

pwpearson / postgres-cheatsheet.md

Created August 2, 2017 19:04 — forked from Kartones/postgres-cheatsheet.md

PostgreSQL command line cheatsheet

Magic words:

psql -U postgres

If run with -E flag, it will describe the underlaying queries of the \ commands (cool for learning!).

Most \d commands support additional param of __schema__.name__ and accept wildcards like *.*

pwpearson / sed cheatsheet

Created January 15, 2018 16:05 — forked from un33k/sed cheatsheet

magic of sed -- find and replace "text" in a string or a file


	FILE SPACING:

	# double space a file
	sed G

	# double space a file which already has blank lines in it. Output file
	# should contain no more than one blank line between lines of text.
	sed '/^$/d;G'

pwpearson / gist:ad0eb2448dabb01bfa9fd0b70033d65d

Created November 26, 2018 16:05 — forked from dvdasari/gist:439ce7c1814c2392c3bf

docker commands

	1. Create new container
	a) docker run -i -t ubuntu /bin/bash
	b) docker run --name rails_dev_container -i -t ubuntu ubuntu /bin/bash
	The command line flags - i -t provide an interactive shell in the new container

	2. Show running docker containers ==> docker ps

	3. Show list of current containers ==>
	a) docker ps -a (Show all containers, both stopped and running)
	b) docker ps -n x (shows the last x containers, running or stopped, ex: docker ps -n 5)

pwpearson / makeImage.sh

Created September 30, 2019 13:45 — forked from bitboxer/makeImage.sh

create a sparsebundle for mac os backups

	#!/bin/bash
	# A bash script to create a time machine disk image suitable for
	# backups with OS X 10.6 (Snow Leopard)
	# This script probably only works for me, so try it at your own peril!
	# Use, distribute, and modify as you see fit but leave this header intact.
	# (R) sunkid - September 5, 2009
	#
	# This will create a time machine ready disk image named with your
	# computer's name with a maximum size of 600GB and copy it to
	# /Volumes/backup. The image "file" (it's a directory, really) will

pwpearson / pre-commit

Created January 12, 2020 20:06 — forked from akaleeroy/pre-commit

OpenSCAD Export git pre-commit hook

	#!/usr/bin/sh
	# Requires OpenSCAD on $PATH

	# Automatically re-exports all changed .scad files pre-commit
	git diff --cached --name-only \| grep ".scad$" \| while read -r file; do
	basename="${file%.*}"
	echo "Exporting $file to $basename.stl..."
	openscad -o "$basename.stl" "$file"
	done

pwpearson / sha256.sh

Created August 23, 2021 20:28 — forked from HassenIO/sha256.sh

Get SHA256 of a text in Mac OSX terminal

	# Get SHA256 of a text
	# Usage: sha256 password
	# output: 5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8
	function sha256() {
	echo -n $1 \| shasum -a 256
	# Source: http://albertech.blogspot.fr/2015/02/generate-sha-256-hash-from-command-line.html
	}

pwpearson / random_hash.sh

Created August 23, 2021 20:29 — forked from rietta/random_hash.sh

Easy command line random hash generator for Mac OS X, Linux, and FreeBSD.

	#!/bin/sh
	head -n 4096 /dev/urandom \| openssl sha1