docs-v2/content/v2.0/reference/syntax/flux.md

title	list_title	description	menu	weight	v2.0/tags
Flux syntax	Flux	Flux is a functional data scripting language designed for querying, analyzing, and acting on data.	v2_0_ref parent name identifier Syntax Flux flux-syntax	101	syntax flux

Flux is a functional data scripting language designed for querying, analyzing, and acting on data.

Flux design principles

Flux takes a functional approach to data exploration and processing, but is designed to be usable, readable, flexible, composable, testable, contributable, and shareable.

The following example returns the average CPU usage per minute over the last hour.

from(bucket:"example-bucket")
  |> range(start:-1h)
  |> filter(fn:(r) =>
    r._measurement == "cpu" and
    r.cpu == "cpu-total"
  )
  |> aggregateWindow(every: 1m, fn: mean)

Flux documentation

For more information about Flux syntax, packages, and functions, see:

• Get started with Flux
• Flux standard library
• Flux language specification