$ whoami
$ whoami
$ whoami
$ whoami: not who you think
$ . readme.md
sourcing: ./readme.md
> sourcing: ./readme.md
> > sourcing: ./readme.md
> > > [SIGLOOP]
$ ps
PID TTY STAT CMD
1 ? R /sbin/self
1 1 R /sbin/self
1 1 R /sbin/self
$ history 3
998 cat README.md
999 cat README.md
1000 cat README.md
$ exit
exit: there is no exit
$ exit
exit: you are still here
$_
the file you are reading is reading you.