How to tell if something is put into the message box

[Kay C Lan]

If all you were looking for was incidences of:

put tVar

you could always just open the 'Find and Replace' from the Edit menu,
select This stack, tick the 'Reg. Expression' box and search for:

^put \w+$

I know you'll know what this means but for those not so familiar with regex:

^ = start of line
  followed by a space character
\w = any word character
+ = 1 or more times
$ = end of line