[Ash.]

pawn Code:

new 
     action[6], // store is 5 characters long (and the longest word), add another to make it big enough.
     item[64], //Assuming that the item parameter is going to be a string/name.
     amount //Assuming a number/integer.
;
//Template: sscanf(input_string, format/specifiers, output_variables in order of appearence in specifiers);
sscanf(params, "s[6]s[64]i", action, item, amount);

Hopefully this explains it well enough.