@RANDOM[min, max]:  Returns a pseudo random integer value between min and max, inclusive. The random number generator is initialized from the system clock the first time it is used after TCC starts and will therefore produce a different sequence of numbers each time you use it. The maximum range between min and max is a signed 64-bit integer.

 

Examples:

 

echo %@random[0,1]

0

 

echo %@random[-10,10]

7

 

echo %@random[-10,10]

9

 

echo %@random[-10,10]

-6