I'd like to spend some time playing with " and :Most people (myself included) find this the trickiest part.
Recall that we can set up a memory box and call it whatever we like.
Let's set up a memory box called doghouse. Into this "box" let's put the dog.This is how we do it make "doghouse "dog
Now to see what's in the doghouse we type show :doghouse
In fact, when I type : I say to myself
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Exercise 25 What happens if you type show "doghouse ?
Exercise 26 Put a least five different things in the doghouse box and check each one goes in ok. Check.