logcli

LogCLI is Grafana's command line client for querying Loki with LogQL and related index APIs. It is built for shell-first log work where you want to inspect, export, or administer log data without opening Grafana.

• Run LogQL range and instant queries, live-tail matching streams, and export logs as raw text or JSONL.
• Inspect label values, series cardinality, detected fields, and index volume to debug queries, label hygiene, and storage cost.
• Download large time windows in parallel, test LogQL against local files with --stdin, and create, list, or cancel log deletion requests.

• Flags and LOKI_* environment variables make unattended auth and repeatable query windows straightforward in scripts or CI.
• It maps closely to Loki's HTTP and websocket APIs, so agents can inspect, export, tail, and request deletions from one shell surface.
• Structured output is partial rather than universal: log queries use JSONL, many metadata commands stay text-first, and you still need working Loki credentials or local input data.

• It is a query and admin client, not a log ingestion tool.
• Grafana recommends matching the logcli version to the Loki server version, and some commands depend on backend features such as TSDB indexes or delete APIs.