Nick Brown programmerbrown

Verify Username

Description

This regular expression matches an username with the following conditions:

it is between 8 to 30 characters
it contains only a through z, A through Z, 0 through 9, and underscore
it begins with an alphabetic character

Regular Expression:

/^[a-zA-Z](?!.*[?@!]).{7,29}$/igm

Resources for Learning Amazon Web Services

Articles, White Papers, Blog Posts

AWS Training Companies

QwikLabs

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

For more about AWS and AWS Certifications and updates to this Gist you should follow me @leonardofed

Description

This gist represents notes related to working with PostGreSQL.

Starting Up PostGreSQL

pg_ctl start -D /usr/local/var/postgres11.2

Stopping Up PostGreSQL

pg_ctl stop -D /usr/local/var/postgres11.2

	I was going through a tutorial and had a project that had git repo initialized.
	I added a project from a zip file that had its own .git and .gitignore file. This caused problems when I wanted to commit
	changes to this file. the diagram below shows the representation

	Diagram:
	my_project
	\|
	\|----- .git
	\|----- .gitignore
	\|