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Description: https://rol.redhat.com/rol/roc/course/ch01s05.html

In the example for tab-completion within a command "useradd --<Tab>" I had to press <Tab> twice in order to see the extra results. I believe the sample output should use "useradd --<Tab><Tab>" instead.

I would like to see the paragraph about Esc+. changed to use Alt+. instead. I feel that Alt+. has the following benefits:
1. It's easier to type since the Alt key is closer that the Esc key.
2. With Alt+., each time you press a period, it scrolls back through your history looking for the last space-separated argument. This is similar to how Esc+. works except that with Alt+., you can simply hold down the Alt key as you repeatedly press the period key. With Esc+., you need to release the Esc key every time. Maybe it's just a personal preference, but I think Alt+. is easier.