Enable Mode Commands : Displaying system data : show tacacs
  
show tacacs
Displays TACACS+ settings.
Syntax
show tacacs
Parameters
None
Example
amnesiac # show tacacs
No tacacs settings
Product
SCC, Interceptor, SteelHead CX, SteelHead-v, SteelHead-c, Client Accelerator
Related Commands
AAA, role-based management, Radius, and TACACS+ commands