Terminal Length

When need to copy the whole config to the notepad,
change the terminal length to 0 (no pausing)

#show run
no pasuing on the console and can copy the whole running config and can easily paste back on the router.
Without this, if your open terminal window size is small, cannot see all the config at 1 time.

R4#terminal length ?
<0-512> Number of lines on screen (0 for no pausing)