Blackra1n Linux Today
The Linux version wasn't pretty. It didn't have the slick UI of the Windows release. It ran in the terminal, spitting out hexadecimal addresses and exploit injection logs. It felt dangerous. If you messed up a dependency, you could put your phone into a Recovery Mode loop that required intricate knowledge of libusb to escape.
But when it worked, it was magic.
If you are using Linux for jailbreaking, it is important to distinguish between these two "ra1n" tools based on your device: How to jailbreak an iPhone or iPod Touch with blackra1n blackra1n linux
There was never an official Linux version. And yet, the phrase persists. The Linux version wasn't pretty