TIL, in the rc shell, arrays of strings in a variable are assigned a positional parameter. meaning, var=(thing1 thing2 thing3 thing4) automatically make: echo $var(2) possible, with the result being "thing2" or even: echo $var(3 1 2) with the result being "thing3" "thing1" "thing2" and the number of strings in a variable can be found with: echo $#var thats... dope.