Cisco Router Copy Commands

Save the current configuration from DRAM to NVRAM - copy running-config startup-config

Merge NVRAM configuration to DRAM - copy startup-config running-config

Copy DRAM configuration to a TFTP server - copy runing-config tftp

Merge TFTP configuration with current router configuration held in DRAM - copy tftp runing-config

Backup the IOS onto a TFTP server - copy flash tftp

Upgrade the router IOS from a TFTP server - copy tftp flash