I've been a professional C, Perl, PHP and Python developer.
I'm an ex-sysadmin from the late 20th century.
These days I do more Javascript and CSS and whatnot, and promote UX and accessibility.
In your example of fixing indentation you're missing the <F7> bit. Use backticks to escape code.
Actually I hate to say it, but this tutorial is wrong in the undo section too. Use u to undo in the general case, not U. Capital U undoes a single line, and basically works in a different way (and it'll not be obvious to new users how it's working).
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
In your example of fixing indentation you're missing the
<F7>bit. Use backticks to escape code.Actually I hate to say it, but this tutorial is wrong in the undo section too. Use
uto undo in the general case, notU. CapitalUundoes a single line, and basically works in a different way (and it'll not be obvious to new users how it's working).