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Subscribe to a Topic

wuji sub <topic> subscribes to a device’s real-time data. By default it keeps subscribing until Ctrl+C. Add --count N to exit automatically after receiving N frames:
List subscribable topics with wuji resources — the command output is the authoritative list. Frequently used topics:

Capture Data to Files

With --jsonl, each frame prints as one compact JSON line — pipe it for lightweight recording:
Exit code 0 means all requested frames arrived, and nonzero means the subscription failed — ready for script assertions.