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@Kartones
Kartones / postgres-cheatsheet.md
Last active June 7, 2025 17:02
PostgreSQL command line cheatsheet

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)
@iamnewton
iamnewton / bash-colors.md
Last active May 29, 2025 03:19
The entire table of ANSI color codes.

Regular Colors

Value Color
\e[0;30m Black
\e[0;31m Red
\e[0;32m Green
\e[0;33m Yellow
\e[0;34m Blue
\e[0;35m Purple
@neuro-sys
neuro-sys / BCD.java
Last active May 15, 2024 12:11
BCD Conversion in java
/*
* Copyright 2010 Firat Salgur
* Improved by Abdallah Abdelazim
* <p>
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>