Difference between commands

[techtr0n1c]

im currentyly doing my ccna and cisco academy lab books seem to use

copy run start or rather copy running-config startup-config however i was watching a traing thing and the instructor was using the command wr

so you can see where this is going whats the difference between using wr and copy run start does one do more than the other etc.

[haroon.shaikh · Accepted solution]

Greetings Mate,

Actually the complete command is:

write memory

which is an old command but it still works. It does the same function as copy run start.

There are also other commands:

write terminal (writes configuration to screen)

write memory (writes configuration to non-volatile memory, e.g. flash)

write network (writes configuration to tftp server on network)

I hope that helps...

* Please rate this post if it helps...

[techtr0n1c]

i noticed there were the extra write commands but i just wanst quite sure.

Thanks for the advice - appreciate it!

[milan.kulik · Accepted solution]

Hi,

the commands are doing the same but there is a little difference:

copy run start

prompts you to confirm the destination filename, while wr does not.

Which can be used in some scriptes, e.g.

BR,

Milan

[brent-miller · Accepted solution]

The write commands work in IOS versions before 12.0. Both work in current IOSes.

[glen.grant]

I use whatever has the fewest keystrokes , which is wr mem , shorter than doing a copy run start . The strange one I haven't figured out is saving to a tftp server . They want you to use some convoluted long string like copy runn tftp /

, it is a lot simpler to just use the "write net" command .