change-os-env ( key quot -- )
Environment variables

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Vocabulary
environment

Inputs

key	a string
quot	a quotation with stack effect ( old -- new )

Outputs
None

Word description
Applies a quotation to change the value stored in an environment variable.

Examples
This is an operating system-specific feature. On Unix, you can do:

USING: environment io ; "USER" os-env print "USER" [ "-doe" append ] change-os-env "USER" os-env print
jane jane-doe

Side effects
Modifies key

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

Definition

USING: kernel ;

IN: environment

: change-os-env ( key quot -- )
    [ [ os-env ] keep ] dip dip set-os-env ; inline