The pw-dump program produces a representation of the current PipeWire state as JSON, including the information on nodes, devices, modules, ports, and other objects. The output of pw-dump is in JSON format and it can be extract required infomation by using jq command. As the output is so complicated, the following suggestion will be usefule. In the output, type is important. The format of type is "type": "PipeWire:Interface:Note" . To see all the type, see the following example. [user@hostname ~]$ pw-dump | jq -r '.[] | . | .type' PipeWire:Interface:Core PipeWire:Interface:Module PipeWire:Interface:Profiler PipeWire:Interface:Module PipeWire:Interface:Factory PipeWire:Interface:Module PipeWire:Interface:Factory PipeWire:Interface:Node PipeWire:Interface:Node PipeWire:Interface:Metadata PipeWire:Interface:Client ... To remove the leading PipeWire:Interface: , sort and filter unique, see the following example. The Node is important among the ...