CLI REST-API

## diff

    diff
    The "diff" command shows differences between the system configuration and the
    "startup" configuration set, which is the one used during system startup. If you want
    your configuration changes to be restored during the next system startup, i.e. the
    next time your system is rebooted or powered on, you have to write your configuration
    to the flash, into the "startup" configset by using the "write" command.

See also:
read: loads a package configuration from the configuration database.
write: saves a package configuration to the configuration database.

#### REST-API Support:

This command is supported by the REST API:
Method: PUT
URL: /api/diff
Example using curl:

    curl -X PUT /api/diff