;log commands should be typed without quotation marks (I'm just using quotations in order to indicate what text constitutes a single command) , and after typing that text you need to execute the search by taping the arrow? icon on the right end of search bar.
So, commands are:
(you used that in the past to install KUAL, and you'll have to is again for that, if you manage to fully restore the jailbreak stuff)
and
(this is used to run any code that you put into "RUNME.sh" script that you put into root level of Kindle drive... you could for example use it to start KOReader without using KUAL)