backupwallet "destination"
Safely copies wallet.dat to destination, which can be a directory or a path with filename.
"destination" (string)
The destination directory or file
smileycoin-cli backupwallet "backup.dat"
curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "backupwallet", "params": ["backup.dat"] }' -H 'content-type: text/plain;' http://127.0.0.1:9332/