def for core

Define a custom command.

Signature

> def (def_name) (params) (body)

Parameters

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

Input/output types:

input	output
nothing	nothing

Examples

Define a command and run it

> def say-hi [] { echo 'hi' }; say-hi
hi

Define a command and run it with parameter(s)

> def say-sth [sth: string] { echo $sth }; say-sth hi
hi

Notes

This command is a parser keyword. For details, check: https://www.nushell.sh/book/thinking_in_nu.html