Output for people

By default, ferry prints text for people. The results and the progress messages use two different channels.

ferry writes the results to stdout.

1 / 3

The two channels

Channel	What `ferry` writes
stdout	The results.
stderr	The progress (`Packing …`, `Uploading …`), the warnings and the errors.

ferry prints tables with aligned columns, and blocks of keys and values. See an example in The commands that you use most.

Text	Form
A log line	`HH:MM:SS [instance] line`
A message from Ferry in a deploy log	It starts with `==>`

For a script, use JSON output.

The commands that you use most

A short list of the ferry commands for each day, with a link to the full reference.

JSON output

With --json, ferry prints the exact answer of the API. Use it in scripts.