Add a package group using up2date command

To add a package group using the up2date command, you can use the -g or --group option followed by the name of the group. For example, to add the "Development Tools" group, you would use the following command:

up2date -g "Development Tools"

This will add all of the packages in the "Development Tools" group to your system.

Note: The up2date command is specific to the Red Hat Enterprise Linux and CentOS operating systems. On other systems, you may need to use a different package manager and a different command to add a package group.