Yupyup, me again.
I need to take a variable and use the contents of that variable to make another variable

Example:
$nick = Bob5
/set %name.of.user.Bob5 True
then %name.of.user.Bob5 = True
but let's say I didn't know what $nick was...
Could I do this?:
/set %name.of.user.$nick True (or %var)
or
/set %name.of.user. $+ $nick True (or %var)
or
/set (%name.of.user. $+ $nick) True
would any of those work to produce:
%name.of.user.Bob5 True
Get it?
OR if you don't cant tell me then answer this:
How do I check if a file exists and return true if it exists and false if it doesnt.
Example:
if filename.txt exists
return true
elseif filename.txt does not exist
return false
(not real code, but you get what I want) :P
Thanks guys, you are all a lot of help. The sooner I learn this, the sooner I can be the one helping.