CLI Reference
prefect shell
Serve and watch shell commands as Prefect flows.
prefect shell watch
Executes a shell command and observes it as Prefect flow.
Arguments
Arguments
[required]
prefect shell serve
Creates and serves a Prefect deployment that runs a specified shell command according to a cron schedule or ad hoc.This function allows users to integrate shell command execution into Prefect workflows seamlessly. It provides options for
scheduled execution via cron expressions, flow and deployment naming for better management, and the application of tags for
easier categorization and filtering within the Prefect UI. Additionally, it supports streaming command output to Prefect logs,
setting concurrency limits to control flow execution, and optionally running the deployment once for ad-hoc tasks.
Arguments
Arguments
[required]
Options
Options
--flow-name
Name of the flow
--deployment-name
Name of the deployment
--tag
Tag for the deployment (can be provided multiple times)
--stream-stdout
Stream the output of the command
--cron-schedule
Cron schedule for the flow
--timezone
Timezone for the schedule
--concurrency-limit
The maximum number of flow runs that can execute at the same time
--run-once
Run the agent loop once, instead of forever.