CLI Reference

The eider CLI is a spatial data engine for GeoZarr and DuckDB. It works two ways:

Interactive (TUI): run a command with missing inputs and it prompts you with menus (provider/collection pickers, resampling options, plot types, …).
Agent / scripting: pass --output=json for machine-readable output and fully non-interactive behavior.

See Installation to get the CLI.

Global options

Option	Description
`--output table`	Human-readable output (default).
`--output json`	Machine-readable JSON; suppresses interactive prompts (required inputs must be passed as flags).

In JSON mode, every command emits a status envelope. On failure:

{ "status": "error", "message": "<what went wrong>" }

On success the shape depends on the command (documented per page).

Command	Purpose
`info`	Inspect a Zarr array's metadata.
`search`	Discover GeoZarr/COG assets via a STAC API.
`extract`	Extract array data intersecting vector polygons into DuckDB.
`ingest`	Convert a legacy file (NetCDF/GeoTIFF/CSV) to GeoZarr.
`export`	Write a DuckDB query result out to a Zarr array.
`resample`	Temporally resample extracted data.
`plot`	Render an ASCII plot from a DuckDB file.
`shell`	Open a DuckDB shell preloaded with the extension.
`completions`	Generate shell completion scripts.

For end-to-end workflows that chain these commands, see the Guides section.