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Not: `!`

Reads the stdin and exit number from previous process and not’s it’s condition

Description

Reads the stdin and exit number from previous process and not’s it’s condition.

Usage

<stdin> -> ! -> <stdout>

Examples

Inverting true

» echo "Hello, world!" -> !
false

Inverting false

» false -> !
true

Synonyms

!
not

See Also

False: false: Returns a false value
If Conditional: if: Conditional statement to execute different blocks of code depending on the result of the condition
Logic And Statements: and: Returns true or false depending on whether multiple conditions are met
Logic Or Statements: or: Returns true or false depending on whether one code-block out of multiple ones supplied is successful or unsuccessful.
True: true: Returns a true value

This document was generated from builtins/core/typemgmt/types_doc.yaml.

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Last built on Mon Feb 2 23:22:37 UTC 2026 against commit 8678ad88678ad89405c2bdd2a92b203f026bc3d46abc88f.

Current version is 7.2.1001 (unknown) which has been verified against tests cases.