Cmd

The Cmd input component executes a specified command and streams its output.

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Output Type

• String

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Pkl Configuration

class Cmd extends Input {
  fixed sourceName = "cmd"
  exec: Listing<String>
}

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Parameters

Name	Type	Description	Example
exec	Listing<String>	Command and arguments	exec { "/usr/bin/log" "stream --style ndjson" }

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Description

The Cmd component runs the specified command with its arguments in a subprocess. The output of the command is then streamed as input for the pipeline.

Example Configuration

new Cmd {
  name = "cmd-example"
  exec = { "/usr/bin/log" "stream --style ndjson" }
}

Use Case

• Capturing system logs and processing them in real-time.
• Integrating external tools or scripts into your pipeline.

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