This is the “PixiePower” command line utility for controlling PIXIE power supplies.
Download it to the Raspberry Pi and follow the instructions in the Pixie Power manual or those shown below.
On the Raspberry Pi Open a command line window and enter the following:
sudo tar xzf ~/Downloads/pixie-power-x.y.tgz -C /usr/bin/
This will extract and install the “PixiePower” application on your Raspberry Pi.