Cisco IOS features

Cisco IOS asks file names or destinations address again if you have already supplied then before.
Example

Router#copy running-config tftp://192.168.1.1/file
Source filename [running-config]?
Address or name of remote host [192.168.1.1]?
Destination filename [file]?
!!
1124 bytes copied in 0.226 secs (4976 bytes/sec)

This can be disabled by the "file prompt quiet" configuration command.

fw#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#file prompt quiet
Router(config)#end
Router#copy running-config tftp://192.168.1.1/file
!!
1124 bytes copied in 0.226 secs (4976 bytes/sec)