fzf Basics
fzf is a command line fuzzy finder that integrates with your favourite shell to make a bunch of tasks better and few tasks way better.
$ kill -9 <tab> # fuzzy search over for the process you need to kill.
$ <Ctrl-R> # fuzzy search for that command you don't want to retype.
$ cat <Ctrl-T> # fuzzy search for any file in the current directory.