$ src/bitcoin-cli help decodescript
Result:
{
  "asm":"asm",          (string) Script public key
  "type":"type",        (string) The output type (e.g. nonstandard, pubkey, pubkeyhash, scripthash, multisig, nulldata)
  "reqSigs": n,         (numeric) The required signatures
  "addresses": [        (json array of string)
     "address"          (string) bitcoin address
     ,...
  ],
  "p2sh":"str"          (string) address of P2SH script wrapping this redeem script (not returned if the script is already a P2SH).
}