yum grouplist

yum grouplist hidden

yum grouplist ids

man yum  #檢視幫助

 "group list" is used to list the available groups from  all  yum
              repos.  When group_command=objects the group is installed if the
              user explicitly installed it (or used the group  mark*  commands
              to  mark  it  installed).  It does not need to have any packages
              installed.  When  not  using  group_command=objects  groups  are
              shown as "installed" if all mandatory packages are installed, or
              if a group doesn't  have  any  mandatory  packages  then  it  is
              installed  if  any  of  the  optional  or  default  package  are
              installed (when not in  group_command=objects  mode).   You  can
              pass optional arguments to the list/summary commands: installed,
              available, environment, language, packages,
 
              available, environment, language, packages, hidden and  ids  (or
              any  of  those  prefixed  by "no" to turn them off again).  Note
              that groups that are available but hidden  will  not  be  listed
              unless  ´hidden´  keyword is passed to the command.  If you pass
              the -v option, to enable verbose mode,  then  the  groupids  are
              displayed  by  default (but "yum group list ids" is often easier
              to read
 
).