Bitcoin Core v0.14.3

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Bitcoin Core v0.14.3

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comments about the image

flags and parameters

starting the daemon

bash-4.4$ bitcoind -?
Bitcoin Core Daemon version v0.14.3.0-g150612ecb5fda

Usage:
  bitcoind [options]                     Start Bitcoin Core Daemon

Options:

  -?
       Print this help message and exit

  -version
       Print version and exit

  -alertnotify=<cmd>
       Execute command when a relevant alert is received or we see a really
       long fork (%s in cmd is replaced by message)

  -blocknotify=<cmd>
       Execute command when the best block changes (%s in cmd is replaced by
       block hash)

  -assumevalid=<hex>
       If this block is in the chain assume that it and its ancestors are valid
       and potentially skip their script verification (0 to verify all,
       default:
       00000000000000000013176bf8d7dfeab4e1db31dc93bc311b436e82ab226b90,
       testnet:
       00000000000128796ee387cf110ccb9d2f36cffaf7f73079c995377c65ac0dcc)

  -conf=<file>
       Specify configuration file (default: bitcoin.conf)

  -daemon
       Run in the background as a daemon and accept commands

  -datadir=<dir>
       Specify data directory

  -dbcache=<n>
       Set database cache size in megabytes (4 to 16384, default: 450)

  -loadblock=<file>
       Imports blocks from external blk000??.dat file on startup

  -maxorphantx=<n>
       Keep at most <n> unconnectable transactions in memory (default: 100)

  -maxmempool=<n>
       Keep the transaction memory pool below <n> megabytes (default: 300)

  -mempoolexpiry=<n>
       Do not keep transactions in the mempool longer than <n> hours (default:
       336)

  -blockreconstructionextratxn=<n>
       Extra transactions to keep in memory for compact block reconstructions
       (default: 100)

  -par=<n>
       Set the number of script verification threads (-16 to 16, 0 = auto, <0 =
       leave that many cores free, default: 0)

  -pid=<file>
       Specify pid file (default: bitcoind.pid)

  -prune=<n>
       Reduce storage requirements by enabling pruning (deleting) of old
       blocks. This allows the pruneblockchain RPC to be called to
       delete specific blocks, and enables automatic pruning of old
       blocks if a target size in MiB is provided. This mode is
       incompatible with -txindex and -rescan. Warning: Reverting this
       setting requires re-downloading the entire blockchain. (default:
       0 = disable pruning blocks, 1 = allow manual pruning via RPC,
       >550 = automatically prune block files to stay under the
       specified target size in MiB)

  -reindex-chainstate
       Rebuild chain state from the currently indexed blocks

  -reindex
       Rebuild chain state and block index from the blk*.dat files on disk

  -sysperms
       Create new files with system default permissions, instead of umask 077
       (only effective with disabled wallet functionality)

  -txindex
       Maintain a full transaction index, used by the getrawtransaction rpc
       call (default: 0)

Connection options:

  -addnode=<ip>
       Add a node to connect to and attempt to keep the connection open

  -banscore=<n>
       Threshold for disconnecting misbehaving peers (default: 100)

  -bantime=<n>
       Number of seconds to keep misbehaving peers from reconnecting (default:
       86400)

  -bind=<addr>
       Bind to given address and always listen on it. Use [host]:port notation
       for IPv6

  -connect=<ip>
       Connect only to the specified node(s); -noconnect or -connect=0 alone to
       disable automatic connections

  -discover
       Discover own IP addresses (default: 1 when listening and no -externalip
       or -proxy)

  -dns
       Allow DNS lookups for -addnode, -seednode and -connect (default: 1)

  -dnsseed
       Query for peer addresses via DNS lookup, if low on addresses (default: 1
       unless -connect/-noconnect)

  -externalip=<ip>
       Specify your own public address

  -forcednsseed
       Always query for peer addresses via DNS lookup (default: 0)

  -listen
       Accept connections from outside (default: 1 if no -proxy or
       -connect/-noconnect)

  -listenonion
       Automatically create Tor hidden service (default: 1)

  -maxconnections=<n>
       Maintain at most <n> connections to peers (default: 125)

  -maxreceivebuffer=<n>
       Maximum per-connection receive buffer, <n>*1000 bytes (default: 5000)

  -maxsendbuffer=<n>
       Maximum per-connection send buffer, <n>*1000 bytes (default: 1000)

  -maxtimeadjustment
       Maximum allowed median peer time offset adjustment. Local perspective of
       time may be influenced by peers forward or backward by this
       amount. (default: 4200 seconds)

  -onion=<ip:port>
       Use separate SOCKS5 proxy to reach peers via Tor hidden services
       (default: -proxy)

  -onlynet=<net>
       Only connect to nodes in network <net> (ipv4, ipv6 or onion)

  -permitbaremultisig
       Relay non-P2SH multisig (default: 1)

  -peerbloomfilters
       Support filtering of blocks and transaction with bloom filters (default:
       1)

  -port=<port>
       Listen for connections on <port> (default: 8333 or testnet: 18333)

  -proxy=<ip:port>
       Connect through SOCKS5 proxy

  -proxyrandomize
       Randomize credentials for every proxy connection. This enables Tor
       stream isolation (default: 1)

  -rpcserialversion
       Sets the serialization of raw transaction or block hex returned in
       non-verbose mode, non-segwit(0) or segwit(1) (default: 1)

  -seednode=<ip>
       Connect to a node to retrieve peer addresses, and disconnect

  -timeout=<n>
       Specify connection timeout in milliseconds (minimum: 1, default: 5000)

  -torcontrol=<ip>:<port>
       Tor control port to use if onion listening enabled (default:
       127.0.0.1:9051)

  -torpassword=<pass>
       Tor control port password (default: empty)

  -whitebind=<addr>
       Bind to given address and whitelist peers connecting to it. Use
       [host]:port notation for IPv6

  -whitelist=<IP address or network>
       Whitelist peers connecting from the given IP address (e.g. 1.2.3.4) or
       CIDR notated network (e.g. 1.2.3.0/24). Can be specified multiple
       times. Whitelisted peers cannot be DoS banned and their
       transactions are always relayed, even if they are already in the
       mempool, useful e.g. for a gateway

  -whitelistrelay
       Accept relayed transactions received from whitelisted peers even when
       not relaying transactions (default: 1)

  -whitelistforcerelay
       Force relay of transactions from whitelisted peers even if they violate
       local relay policy (default: 1)

  -maxuploadtarget=<n>
       Tries to keep outbound traffic under the given target (in MiB per 24h),
       0 = no limit (default: 0)

Wallet options:

  -disablewallet
       Do not load the wallet and disable wallet RPC calls

  -keypool=<n>
       Set key pool size to <n> (default: 100)

  -fallbackfee=<amt>
       A fee rate (in BTC/kB) that will be used when fee estimation has
       insufficient data (default: 0.0002)

  -mintxfee=<amt>
       Fees (in BTC/kB) smaller than this are considered zero fee for
       transaction creation (default: 0.00001)

  -paytxfee=<amt>
       Fee (in BTC/kB) to add to transactions you send (default: 0.00)

  -rescan
       Rescan the block chain for missing wallet transactions on startup

  -salvagewallet
       Attempt to recover private keys from a corrupt wallet on startup

  -spendzeroconfchange
       Spend unconfirmed change when sending transactions (default: 1)

  -txconfirmtarget=<n>
       If paytxfee is not set, include enough fee so transactions begin
       confirmation on average within n blocks (default: 6)

  -usehd
       Use hierarchical deterministic key generation (HD) after BIP32. Only has
       effect during wallet creation/first start (default: 1)

  -walletrbf
       Send transactions with full-RBF opt-in enabled (default: 0)

  -upgradewallet
       Upgrade wallet to latest format on startup

  -wallet=<file>
       Specify wallet file (within data directory) (default: wallet.dat)

  -walletbroadcast
       Make the wallet broadcast transactions (default: 1)

  -walletnotify=<cmd>
       Execute command when a wallet transaction changes (%s in cmd is replaced
       by TxID)

  -zapwallettxes=<mode>
       Delete all wallet transactions and only recover those parts of the
       blockchain through -rescan on startup (1 = keep tx meta data e.g.
       account owner and payment request information, 2 = drop tx meta
       data)

Debugging/Testing options:

  -uacomment=<cmt>
       Append comment to the user agent string

  -debug=<category>
       Output debugging information (default: 0, supplying <category> is
       optional). If <category> is not supplied or if <category> = 1,
       output all debugging information.<category> can be: addrman,
       alert, bench, cmpctblock, coindb, db, http, libevent, lock,
       mempool, mempoolrej, net, proxy, prune, rand, reindex, rpc,
       selectcoins, tor, zmq.

  -help-debug
       Show all debugging options (usage: --help -help-debug)

  -logips
       Include IP addresses in debug output (default: 0)

  -logtimestamps
       Prepend debug output with timestamp (default: 1)

  -minrelaytxfee=<amt>
       Fees (in BTC/kB) smaller than this are considered zero fee for relaying,
       mining and transaction creation (default: 0.00001)

  -maxtxfee=<amt>
       Maximum total fees (in BTC) to use in a single wallet transaction or raw
       transaction; setting this too low may abort large transactions
       (default: 0.10)

  -printtoconsole
       Send trace/debug info to console instead of debug.log file

  -shrinkdebugfile
       Shrink debug.log file on client startup (default: 1 when no -debug)

Chain selection options:

  -testnet
       Use the test chain

Node relay options:

  -bytespersigop
       Equivalent bytes per sigop in transactions for relay and mining
       (default: 20)

  -datacarrier
       Relay and mine data carrier transactions (default: 1)

  -datacarriersize
       Maximum size of data in data carrier transactions we relay and mine
       (default: 83)

  -mempoolreplacement
       Enable transaction replacement in the memory pool (default: 1)

Block creation options:

  -blockmaxweight=<n>
       Set maximum BIP141 block weight (default: 3000000)

  -blockmaxsize=<n>
       Set maximum block size in bytes (default: 750000)

  -blockprioritysize=<n>
       Set maximum size of high-priority/low-fee transactions in bytes
       (default: 0)

  -blockmintxfee=<amt>
       Set lowest fee rate (in BTC/kB) for transactions to be included in block
       creation. (default: 0.00001)

RPC server options:

  -server
       Accept command line and JSON-RPC commands

  -rest
       Accept public REST requests (default: 0)

  -rpcbind=<addr>
       Bind to given address to listen for JSON-RPC connections. Use
       [host]:port notation for IPv6. This option can be specified
       multiple times (default: bind to all interfaces)

  -rpccookiefile=<loc>
       Location of the auth cookie (default: data dir)

  -rpcuser=<user>
       Username for JSON-RPC connections

  -rpcpassword=<pw>
       Password for JSON-RPC connections

  -rpcauth=<userpw>
       Username and hashed password for JSON-RPC connections. The field
       <userpw> comes in the format: <USERNAME>:<SALT>$<HASH>. A
       canonical python script is included in share/rpcuser. The client
       then connects normally using the
       rpcuser=<USERNAME>/rpcpassword=<PASSWORD> pair of arguments. This
       option can be specified multiple times

  -rpcport=<port>
       Listen for JSON-RPC connections on <port> (default: 8332 or testnet:
       18332)

  -rpcallowip=<ip>
       Allow JSON-RPC connections from specified source. Valid for <ip> are a
       single IP (e.g. 1.2.3.4), a network/netmask (e.g.
       1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This
       option can be specified multiple times

  -rpcthreads=<n>
       Set the number of threads to service RPC calls (default: 4)

using bitcoind

bash-4.4$ bitcoin-cli help
== Blockchain ==
getbestblockhash
getblock "blockhash" ( verbose )
getblockchaininfo
getblockcount
getblockhash height
getblockheader "hash" ( verbose )
getchaintips
getdifficulty
getmempoolancestors txid (verbose)
getmempooldescendants txid (verbose)
getmempoolentry txid
getmempoolinfo
getrawmempool ( verbose )
gettxout "txid" n ( include_mempool )
gettxoutproof ["txid",...] ( blockhash )
gettxoutsetinfo
preciousblock "blockhash"
pruneblockchain
verifychain ( checklevel nblocks )
verifytxoutproof "proof"

== Control ==
getinfo
getmemoryinfo
help ( "command" )
stop

== Generating ==
generate nblocks ( maxtries )
generatetoaddress nblocks address (maxtries)

== Mining ==
getblocktemplate ( TemplateRequest )
getmininginfo
getnetworkhashps ( nblocks height )
prioritisetransaction <txid> <priority delta> <fee delta>
submitblock "hexdata" ( "jsonparametersobject" )

== Network ==
addnode "node" "add|remove|onetry"
clearbanned
disconnectnode "address"
getaddednodeinfo ( "node" )
getconnectioncount
getnettotals
getnetworkinfo
getpeerinfo
listbanned
ping
setban "subnet" "add|remove" (bantime) (absolute)
setnetworkactive true|false

== Rawtransactions ==
createrawtransaction [{"txid":"id","vout":n},...] {"address":amount,"data":"hex",...} ( locktime )
decoderawtransaction "hexstring"
decodescript "hexstring"
fundrawtransaction "hexstring" ( options )
getrawtransaction "txid" ( verbose )
sendrawtransaction "hexstring" ( allowhighfees )
signrawtransaction "hexstring" ( [{"txid":"id","vout":n,"scriptPubKey":"hex","redeemScript":"hex"},...] ["privatekey1",...] sighashtype )

== Util ==
createmultisig nrequired ["key",...]
estimatefee nblocks
estimatepriority nblocks
estimatesmartfee nblocks
estimatesmartpriority nblocks
signmessagewithprivkey "privkey" "message"
validateaddress "address"
verifymessage "address" "signature" "message"

== Wallet ==
abandontransaction "txid"
addmultisigaddress nrequired ["key",...] ( "account" )
addwitnessaddress "address"
backupwallet "destination"
bumpfee "txid" ( options )
dumpprivkey "address"
dumpwallet "filename"
encryptwallet "passphrase"
getaccount "address"
getaccountaddress "account"
getaddressesbyaccount "account"
getbalance ( "account" minconf include_watchonly )
getnewaddress ( "account" )
getrawchangeaddress
getreceivedbyaccount "account" ( minconf )
getreceivedbyaddress "address" ( minconf )
gettransaction "txid" ( include_watchonly )
getunconfirmedbalance
getwalletinfo
importaddress "address" ( "label" rescan p2sh )
importmulti "requests" "options"
importprivkey "bitcoinprivkey" ( "label" ) ( rescan )
importprunedfunds
importpubkey "pubkey" ( "label" rescan )
importwallet "filename"
keypoolrefill ( newsize )
listaccounts ( minconf include_watchonly)
listaddressgroupings
listlockunspent
listreceivedbyaccount ( minconf include_empty include_watchonly)
listreceivedbyaddress ( minconf include_empty include_watchonly)
listsinceblock ( "blockhash" target_confirmations include_watchonly)
listtransactions ( "account" count skip include_watchonly)
listunspent ( minconf maxconf  ["addresses",...] [include_unsafe] )
lockunspent unlock ([{"txid":"txid","vout":n},...])
move "fromaccount" "toaccount" amount ( minconf "comment" )
removeprunedfunds "txid"
sendfrom "fromaccount" "toaddress" amount ( minconf "comment" "comment_to" )
sendmany "fromaccount" {"address":amount,...} ( minconf "comment" ["address",...] )
sendtoaddress "address" amount ( "comment" "comment_to" subtractfeefromamount )
setaccount "address" "account"
settxfee amount
signmessage "address" "message"
Previous version: v0.14.2 Next version: v0.15.0

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