There are two methods to help understand the current state of the command-line client, and to watch it's activity.

To view the status of the command-line client, use the status command:

This will display the following information:

$ jotta-cli status
---------------------------------------------------------
 Account   : test-account
 Usage     : 1.57TB / 2.0TB
 Backups   :
---------------------------------------------------------
   Path      : /Users/test/Desktop
   Files     : 8536 files / 8.48GB
   Status    : Up to date!
---------------------------------------------------------
OK

The command-line client will write logs to jotta-cli install directory. Typically this is located in the users home directory under the .jottad folder.
​~/jottad/jottabackup.log 

You can tail the logs of a running jottad process by using the tailf command:

Press ctrl-c to exit the command.