MAN PAGES // WEEK 21
ARRAYS · Ch 9 Sec 1-4 · six terms · write your own usage line under each
$ man ARRAY
an ordered list of values in one variable
$ man INDEX
an item's position, counting from zero
$ man LENGTH
how many items an array holds
$ man PUSH
add an item to the end
$ man POP
remove the last item
$ man ELEMENT
one item inside an array