nushell/docs/commands/for.md

for

Run a block on each row of the table.

Usage

> for <var> <in> <value> <block> {flags} 

Parameters

• <var> the name of the variable
• <in> the word 'in'
• <value> the value we want to iterate
• <block> the block to run on each item

Flags

• -h, --help: Display this help message
• -n, --numbered: returned a numbered item ($it.index and $it.item)

Examples

Echo the square of each integer

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

Work with elements of a range

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

Number each item and echo a message

> for $it in ['bob' 'fred'] --numbered { $"($it.index) is ($it.item)" }