If you want to allow a low-priviledged user on a Cisco router or a Switch to view the Startup Config then this can be done in Routers and Switches running Cisco IOS.
This infact is a simple 2 step procedure as follows:
Tag: startup-config
How to Backup & Restore config in Cisco routers and switches using Hyperterminal
The easiest method to backup Cisco routers and Switches would be when you are logged onto it using a tool like HyperTerminal either via telnet,ssh or via console.
For information on how to backup config on a cisco router or a switch using TFTP click here