Unable to add user group "groupadd: <group name> is not a valid group name"

Solution Verified - Updated -

Issue

  • Unable to add group with groupadd command <group> is not a valid group name

    # groupadd example_corporate_linux_admin_team
    groupadd: 'example_corporate_linux_admin_team' is not a valid group 
    name
    

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

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