The following system variables are not shown in the variables list. These variables are used in publishing templates, used by the library for localized content, and used in command line actions.
When the system variables for HTML publishing template are used, the variable must be added to the template with a namespace declaration.
For example, to use SYS_BREADCRUMBS in the template you must add authorit: inside the first angle bracket.
<authorit:SYS_BREADCRUMBS>