/bin/sh

What have you done for your sh(1) today?

rm /bin/sh; ln -s /bin/bash /bin/sh

_scsh

I have my own shell

I call it "it"

/bin/shit

>>4
It should be /usr/local/bin/itsh (or, if you've installed it with the package manager, /usr/bin/itsh.

cat /bin/zsh > ~/.shrc

laden shell

/bin/laden

I liked the atmosphere of couple first episodes very much, then there were many rather uninteresting plot developments but overall very feel giving and satisfying experience.

A neutron bomb is the opposite of what you want for this sort of thing. The point of a traditional fission or fusion bomb is to release great energy in the form of physical shocks and heat to primarily cause burning and overpressure damage to targets.