If you’ve ever used Postico to connect to a PostgreSQL database on Amazon’s RDS, you’ve probably encountered this warning: “Postico can't verify the identity of the server. If you connect, you are vulnerable to a man-in-the-middle attack.” Here’s how to get rid of that warning by teaching your computer to trust Amazon RDS.

Last night at pdx.rb, Markus Roberts gave us a code golf exercise on dealing hands of a given size from a deck of cards.

According to POSIX, every text file should end with a newline. Here's how to programmatically add any missing end-of-file newlines.