Here's the RPC calls below for sending BTC you can place the same address under bitcoin_address from the command below.
bitcoin-cli sendtoaddress <bitcoin_address> <amount>
This is all you need to do if you don't care about exactly what kind of transaction is made.
Although if you use the
-named command-line switch then you can also specify the transaction fee much more easily.
Example:
bitcoin-cli -named sendtoaddress address=<address> amount=<amount> fee_rate=<in sats/vbyte>
Note that both of these commands require that you unlock the wallet using the
walletpassphrase command if it is password-protected. (And it should be!)