What command shows the names of installed and available software package groups?

The command that successfully displays the names of installed and available software package groups is "yum group list." This command is part of the "yum" package manager, which is used on Red Hat-based systems to manage packages. When executed, it provides a clear overview of the various software groups, indicating which groups are currently installed on the system and which are available for installation.

In the context of package management, a "package group" is a collection of related packages that can be installed collectively. This is useful for quickly provisioning software environments with all necessary applications.

Although "dnf group info" can provide detailed information about a specific group, it does not list all installed and available group packages at once. The "rpm -qa" command lists all installed packages but not group information, while "yum package-info" is not a valid command for listing package groups, as it is typically used to retrieve info on specific individual packages rather than groups.