Lukáš Fuchs panzelva

Everything I Know About UI Routing

Definitions

Location - The location of the application. Usually just a URL, but the location can contain multiple pieces of information that can be used by an app
1. pathname - The "file/directory" portion of the URL, like invoices/123
2. search - The stuff after ? in a URL like /assignments?showGrades=1.
3. query - A parsed version of search, usually an object but not a standard browser feature.
4. hash - The # portion of the URL. This is not available to servers in request.url so its client only. By default it means which part of the page the user should be scrolled to, but developers use it for various things.
5. state - Object associated with a location. Think of it like a hidden URL query. It's state you want to keep with a specific location, but you don't want it to be visible in the URL.

If your running a x64 bit Ubuntu or other Linux and find USB transfers hang at the end apply this fix:

echo $((16*1024*1024)) > /proc/sys/vm/dirty_background_bytes
echo $((48*1024*1024)) > /proc/sys/vm/dirty_bytes

I suggest you edit your /etc/rc.local file to make this change persistant across reboots.

sudo nano /etc/rc.local

Determine your device id

Unplug your device from the computer and type lsusb in the terminal. You should get an output similar to this:

Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

-E: will describe the underlaying queries of the \ commands (cool for learning!)
-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

	apiVersion: rbac.authorization.k8s.io/v1beta1
	kind: ClusterRoleBinding
	metadata:
	name: healthz-reader
	roleRef:
	apiGroup: rbac.authorization.k8s.io
	kind: ClusterRole
	name: healthz-reader
	subjects:
	- apiGroup: rbac.authorization.k8s.io

	#!/bin/bash
	#
	# GoLang cross-compile snippet for Go 1.6+ based loosely on Dave Chaney's cross-compile script:
	# http://dave.cheney.net/2012/09/08/an-introduction-to-cross-compilation-with-go
	#
	# To use:
	#
	# $ cd ~/path-to/my-awesome-project
	# $ go-build-all
	#

	-- show running queries (pre 9.2)
	SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
	FROM pg_stat_activity
	WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
	ORDER BY query_start desc;

	-- show running queries (9.2)
	SELECT pid, age(clock_timestamp(), query_start), usename, query
	FROM pg_stat_activity
	WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'

	#/bin/bash
	#-- Script to automate https://help.github.com/articles/why-is-git-always-asking-for-my-password

	REPO_URL=`git remote -v \| grep -m1 '^origin' \| sed -Ene's#.(https://[^[:space:]]).*#\1#p'`
	if [ -z "$REPO_URL" ]; then
	echo "-- ERROR: Could not identify Repo url."
	echo " It is possible this repo is already using SSH instead of HTTPS."
	exit
	fi