nushell/docs/commands/keep.md

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# keep
Keep the number of rows only.
## Usage
```shell
> keep (rows) <subcommand> {flags}
```
## Subcommands
* keep until - Keeps rows until the condition matches.
* keep while - Keeps rows while the condition matches.
## Parameters
* `(rows)` Starting from the front, the number of rows to keep
## Flags
* -h, --help: Display this help message
## Examples
Keep the first row
```shell
> echo [1 2 3] | keep
```
Keep the first four rows
```shell
> echo [1 2 3 4 5] | keep 4
```