It's easy to feed your Arduino Uno with µfck.
µfck comes with an pre-inserted brainfck code which prints a simple text. Feel free to enter your own code or add your code to load it from eeprom.

Clone from https://github.com/willeio/ufck

Run make install with the following arguments:

• Specify your Device to communicate and flash the binary with it: DEVICE=% Your Serial Device % [examples => Linux: /dev/ttyACM3; Windows: COM6]
• Your AVR Dude Flash Configuration File: DUDE_CFG=%Your AVR Dude Configuration File% [located in your Arduino SDK folder + "Arduino/hardware/tools/avr/etc/avrdude.conf"]

Open the Terminal Emulator of your choice and open the previously selected serial device at 9600 baud.