nushell/docs/commands/def-env.md

title	layout	version
def-env	command	0.59.0

Define a custom command, which participates in the caller environment

Signature

> def-env (def_name) (params) (block)

Parameters

• def_name: definition name
• params: parameters
• block: body of the definition

Examples

Set environment variable by call a custom command

> def-env foo [] { let-env BAR = "BAZ" }; foo; $env.BAR