for

For core.

Command Type

keyword

Signature

> for {flags} (var_name) (range) (block)

Parameters

• var_name: Name of the looping variable.
• range: Range of the loop.
• block: The block to run.

Input/output types:

input	output
nothing	nothing

Examples

Print the square of each integer.

> for x in [1 2 3] { print ($x * $x) }

Work with elements of a range.

> for $x in 1..3 { print $x }

Number each item and print a message.

> for $it in (['bob' 'fred'] | enumerate) { print $"($it.index) is ($it.item)" }

Notes

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

Ported from nushell/nushell.github.io. Copyright (c) 2021 Nushell Project. MIT License.