a feature of Unix computer systems.

In the printing world, the exclamation mark can be called a screamer, a gasper, a slammer, a dog's cock, or a startler.

Programmers originally called the exclamation mark by its full name or "shriek", but Unix popularized the "bang" name. For example, the password communicated in the spoken phrase "Your password is em-zero-pee-aitch-bang-en-three" is m0ph!n3.

Languages

The exclamation mark is mainly used in languages that use the Latin alphabet,

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