The sessions utility shows all open sessions.

usage: cm sessions -u <user> [other options] [-v]
available options:
 -d,--domain <domain name>   domain for login (default= <builtin>)
 -g,--grpc-endpoint <addr>   gRPC endpoint address to connect to
 -p,--password <password>    password for login
 -u,--user <user name>       user for login (required)
 --url <ior url>             url to connect to
 -v,--verbose                verbose

The sessions tool has only one additional option:

The verbose output of the sessions utility looks like this (sample, one session only):

session: coremedia:///cap/session/11
    privileged: false
    user: rolf (coremedia:///cap/user/9)
    client type: GUI Editor
    host: nightshade (0.0.0.1)
    started at: 2004-12-21T11:10:37+01:00
    service: coremedia:///cap/service/editor