4.4.3 The list clusters Command  list clusters site_name  This
command lists all clusters defined for a given management site
named site_name, together with the package used by each cluster.
For example, the command shown here displays a list of all
clusters defined for the site named mysite:  mcmc> list clusters
mysite; | Cluster          | Package  | | mycluster        |
m-7.1.26 | | yourcluster      | y-7.1.26 | | someothercluster |
s-7.2.9  | 3 rows in set (2.07 sec)  If site_name is omitted,
the command fails with an error, as shown here:  mcm> list
packages; ERROR 6 (00MGR): Illegal number of operands