rsh

def-env for core

Define a custom command, which participates in the caller environment.

Signature

> def-env {flags} (def_name) (params) (block)

Parameters

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

Input/output types:

input output
nothing nothing

Examples

Set environment variable by call a custom command

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

Notes 

This command is a parser keyword. For details, check:
  https://irsh.vercel.app/book/thinking_in_rsh.html