Can I start or stop a probe service using a command line?

Release : 8.5.x or later

You can stop or start a probe service service using the Probe Utility (PU). PU is a command-line utility located in "Program files\Nimsoft\bin" which is installed with each robot.

To start a probe service:
pu -u <user> -p <password> <Address> start_service <servicename>

To stop a windows service:
pu -u <user> -p <password> <Address> stop_service <servicename>

Where:

<user> is a nimbus user
<password> is the password associated with the Nimbus user
<Address> is the Nimsoft probe address
<servicename> is the name of the probe service

Format of Nimbus address:

/domain/hub/robot/ntservices

More details about the Usage:
  pu [options] <nim-address> [<command> [<data>...]]
  pu [options] -H host [-P port] [-c controller_host [-e controller_port]] [<command> [<data>...]]

    <nim-address>        Name of the probe receiving the callback, must be fully qualified if
                           not on the local robot.  Will issue from the local controller probe.

                           Example of a fully qualified nim-address:
                                    "/nim-domain/nim-hub/nim-robot/controller".

    <command>            Name of the callback to run on the receiving probe.  If not specified,
                           lists the available commands on the receiving probe.
    <data>               Series of arguments to pass to the callback.  If required arguments
                           are not specified, user will be asked interactively.
    -V                   Print the version of the Probe Utility tool.
    -i                   Run in interactive mode.
    -u user              NimBUS username.
    -p password          NimBUS password.
    -t sec               Timeout in seconds.
    -d level             Debug level.
    -L                   List the available commands on the receiving probe.
    -I                   Show the receiving probe information.
    -R                   Restart the receiving probe.
    -S                   Stop the receiving probe.
    -H host              hostname or ip of the probe receiving the callback
    -P port              port number of the probe receiving the callback (default 48000)
    -c controller_host   hostname or ip of the probe issuing the callback (default localhost)
    -e controller_port   port number of the probe issuing the callback (default 48000)

If you want to check how to start/stop a robot:
https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/it-operations-management/unified-infrastructure-management/9-0-2/administering/start-stop-or-uninstall-a-robot-command-line.html