utils service listThis command will list all services on an appliance. It's usually used with the parameter 'page', so it'll pause at each page.
utils service stopThese commands are used to stop/start/restart services. For example, if you'd like to restart "Cisco Tomcat" service, you type "utils service restart Cisco Tomcat".
utils service start
utils service restart
utils system shutdownThese commands are used to shutdown or restart the system.
utils system restart
utils system switch-versionThis command is used to switch software version (if you have two versions installed). For your information, Cisco Unified Appliance will keep two versions of software on hard drive - one in the root partition, the other one in "PartB" partition. This provides you an option to fall back to an old version.
To see the versions installed, use the commands below:
show version activeEvery time you run "utils system switch-version", it'll make the active partition inactive and make the inactive partition active.
show version inactive
Please note that each partition (version) has it's own database, which means they don't share the same database (configuration). If you switched version, you might lose any changes you made in the other version.