>>51098227made a quick video few hours back when someone asked in flt
first thing with the "test" shows use of plugin prepend-sudo
on ctrl+f it put sudo on the beginning of the current line and return cursor to its original position
the second with cd is all about autocomplete, how it knows shit and is easily navigable
tha last with mount and nano is about searching in history, your write part of your command, then arrow up and it goes through history where that string occured, not like bash being retarded
