This is a pale imitation of the DMS-250 SOS command line.
It's based on a Perl script I wrote many years ago. It has a little bit of training value -- you can set the boot files for a switch and then do a restart. That's something you couldn't "practice" in the olden days without booking time on a switch. There's also a rudimentary TTP layer, if you know how to get to that.
It's fairly ridiculous, except for nostalgia value.
It does very little, and requires that you know DMS-250 SOS already.
* you can enter DISKUTIL
* from DISKUTIL, you can LV 0, LF on the images, and do elementary CBF and SBF commands.
* you can do a restart reload, restart cold, and restart warm (that's how you log out)
* you can go to TTP and post a trunk. You can then bsy, offl, or rts it.