backupwallet "destination"
Safely copies the current wallet file to the specified destination, which can either be a directory or a path with a filename.
Arguments
1. destination (string, required) The destination directory or file
Result
null (json null)
Examples
> bitcoin-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://127.0.0.1:8332/