| <?php | |
| // secure hashing of passwords using bcrypt, needs PHP 5.3+ | |
| // see http://codahale.com/how-to-safely-store-a-password/ | |
| // salt for bcrypt needs to be 22 base64 characters (but just [./0-9A-Za-z]), see http://php.net/crypt | |
| $salt = substr(strtr(base64_encode(openssl_random_pseudo_bytes(22)), '+', '.'), 0, 22); | |
| // 2y is the bcrypt algorithm selector, see http://php.net/crypt | |
| // 12 is the workload factor (around 300ms on my Core i7 machine), see http://php.net/crypt |
https://github.com/spieglt/cloaker - password-based file encryptor (NOTE: uses Qt)
https://github.com/str4d/rage - file encryption tool and librarary that uses the age format
https://github.com/mohanson/gameboy - gameboy emulator
https://github.com/bartwillems/lyriek - fetch the lyrics of a song playing in an mpris-compatible player
https://github.com/JakeStanger/mpd-discord-rpc - discordrpc for mpd
It's now here, in The Programmer's Compendium. The content is the same as before, but being part of the compendium means that it's actively maintained.
Psql is a fully-fledged CLI client for Postgres, but most people are unaware of its many advanced features.
~/.psqlrc can be edited to persist any behavior or configuration settings you want between psql sessions. It behaves just like ~/.bashrc or ~/.vimrc, sourced at psql launch. See More out of psql for some interesting configurations.
If you have a long query to write and rewrite, you can use \e to edit your query in an editor.
Use \watch at the end of a query in order to automatically re-run the query every few seconds - great for monitoring while making changes elsewhere in your application architecture.
| int doubler(int x) { | |
| return 2 * x; | |
| } |
Someone sent me an email asking me what advice I had for new developers. I get this question a bunch, so I wanted to put all my thoughts in one place, that I can update as I get more ideas!
I answered this a bunch on my AMA repo, so here's some initial general answers, before I get to some of the specific questions:
This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.
http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL
