Magic words:
psql -U postgresSome 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)
| -- Two dashes start a one-line comment. | |
| --[[ | |
| Adding two ['s and ]'s makes it a | |
| multi-line comment. | |
| --]] | |
| ---------------------------------------------------- | |
| -- 1. Variables and flow control. | |
| ---------------------------------------------------- |
| ### See PIN-based authorization for details at | |
| ### https://dev.twitter.com/docs/auth/pin-based-authorization | |
| import tweepy | |
| consumer_key=<your_app_consumer_key> | |
| consumer_secret=<your_app_consumer_secret> | |
| auth = tweepy.OAuthHandler(consumer_key, consumer_secret) |
| <!doctype html> | |
| <title>Site Maintenance</title> | |
| <style> | |
| body { text-align: center; padding: 150px; } | |
| h1 { font-size: 50px; } | |
| body { font: 20px Helvetica, sans-serif; color: #333; } | |
| article { display: block; text-align: left; width: 650px; margin: 0 auto; } | |
| a { color: #dc8100; text-decoration: none; } | |
| a:hover { color: #333; text-decoration: none; } | |
| </style> |
| Decimal to Hexadecimal | |
| 10->A | |
| echo 'obase=16;10'| bc | |
| Or | |
| wcalc -h 10 | |
| Decimal to Octal | |
| 10->12 | |
| echo 'obase=8;10' | bc | |
| Or |