I want to schedule some of my BigQuery table load commands that I execute in the Cloud Shell CLI. How can I schedule my CLI commands in Google Cloud Platform?
Cloud Shell isn't a tool intended to use as part of your production environment, you should take a look into it's terms and conditions. you might find this part especially blocking for this purpose:
Non-interactive sessions will be ended automatically after a warning. Note that Cloud Shell sessions are capped at 12 hours, after which sessions are automatically terminated.
What you can actually do is to create a Cloud Function and trigger it by a cron job or use a Compute Engine instance and schedule a command on linux