First line of a script.
Composed of the Hash, aka pound or number sign ("#"), followed by the Bang, aka exclamation mark ("!"), followed by the path to the script interpreter.
Usually found in scripts running on unix-based systems

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.