unset-os-env ( key -- )
Environment variables

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Vocabulary
environment

Inputs

key

a string

Outputs
None

Word description
Unset an environment variable.

Notes
Names and values of environment variables are operating system-specific.

See also
os-env, os-envs, set-os-env, set-os-envs, set-os-envs-pointer, change-os-env, with-os-env

Definition

USING: system ;

IN: environment

HOOK: unset-os-env os ( key -- )

Methods

USING: environment libc system unix.ffi ;

M: unix unset-os-env unsetenv io-error ;