fwsl

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)

	#!/bin/bash

	## Update fail2ban iptables with globally known attackers.
	## Actually, runs 100% independently now, without needing fail2ban installed.
	##
	## /etc/cron.daily/sync-fail2ban
	##
	## Author: Marcos Kobylecki <[email protected]>
	## http://www.reddit.com/r/linux/comments/2nvzur/shared_blacklists_from_fail2ban/