mut for core

Signature

> mut {flags} (var_name) (initial_value)

Parameters

• var_name: variable name
• initial_value: equals sign followed by value

Input/output types:

Examples

Set a mutable variable to a value, then update it

>mutx=10;$x=12

Upsert a value inside a mutable data structure

>muta= {b:{c:1}};$a.b.c=2

Set a mutable variable to the result of an expression

>mutx=10+100

Set a mutable variable based on the condition

>mutx=iffalse { -1 } else { 1 }

Notes

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