Push install while upgrading solaris clients from 7.5.0.6 to 7.6.0.3

Hi Experts,

I am planning an NBU upgrade from 7.5.0.6 to 7.6.0.3 on Solaris 10 master server. All the Unix clients are solaris 10 based machines (around 70 clients).

I need to know the different ways to do the client upgrade from the master server to all clients at once.

Will update_clients -ClientList /clients1.txt help by passing the vi file?