1) How do you create the variable? If you are simply generating it using TLC and it is not directly associated with a signal and parameter, you can write a MATLAB function (say it is called generateRandomName) with the code the cyclist suggested and call it from TLC using something like:
%assign varname = FEVAL("generateRandomName")
int %<varname> = 100;
2) It depends on what you mean by passing it on to other TLC files - do the other files consist of functions? Are they called from the code in question? If yes, you can simply pass on the variable as function arguments. You can also consider using the "addtorecord" TLC directive to add this information to an existing record so that all other TLC files can also look at that same record and use the variable name.
