bitcoin-qt(1) peer-to-peer network based digital currency

DESCRIPTION

Usage:

bitcoin-qt [command-line options]

OPTIONS

-?
This help message
-conf=<file>
Specify configuration file (default: bitcoin.conf)
-pid=<file>
Specify pid file (default: bitcoind.pid)
-gen
Generate coins
-gen=0
Don't generate coins
-datadir=<dir>
Specify data directory
-dbcache=<n>
Set database cache size in megabytes (default: 25)
-timeout=<n>
Specify connection timeout in milliseconds (default: 5000)
-proxy=<ip:port>
Connect through SOCKS5 proxy
-tor=<ip:port>
Use proxy to reach tor hidden services (default: same as -proxy)
-dns
Allow DNS lookups for -addnode, -seednode and -connect
-port=<port>
Listen for connections on <port> (default: 8333 or testnet: 18333)
-maxconnections=<n>
Maintain at most <n> connections to peers (default: 125)
-addnode=<ip>
Add a node to connect to and attempt to keep the connection open
-connect=<ip>
Connect only to the specified node(s)
-seednode=<ip>
Connect to a node to retrieve peer addresses, and disconnect
-externalip=<ip>
Specify your own public address
-onlynet=<net>
Only connect to nodes in network <net> (IPv4, IPv6 or Tor)
-discover
Discover own IP address (default: 1 when listening and no -externalip)
-checkpoints
Only accept block chain matching built-in checkpoints (default: 1)
-listen
Accept connections from outside (default: 1 if no -proxy or -connect)
-bind=<addr>
Bind to given address and always listen on it. Use [host]:port notation for IPv6
-dnsseed
Find peers using DNS lookup (default: 1 unless -connect)
-banscore=<n>
Threshold for disconnecting misbehaving peers (default: 100)
-bantime=<n>
Number of seconds to keep misbehaving peers from reconnecting (default: 86400)
-maxreceivebuffer=<n>
Maximum per-connection receive buffer, <n>*1000 bytes (default: 5000)
-maxsendbuffer=<n>
Maximum per-connection send buffer, <n>*1000 bytes (default: 1000)
-upnp
Use UPnP to map the listening port (default: 1 when listening)
-paytxfee=<amt>
Fee per KB to add to transactions you send
-server
Accept command line and JSON-RPC commands
-testnet
Use the test network
-debug
Output extra debugging information. Implies all other -debug* options
-debugnet
Output extra network debugging information
-logtimestamps
Prepend debug output with timestamp
-shrinkdebugfile
Shrink debug.log file on client startup (default: 1 when no -debug)
-printtoconsole
Send trace/debug info to console instead of debug.log file
-rpcuser=<user>
Username for JSON-RPC connections
-rpcpassword=<pw>
Password for JSON-RPC connections
-rpcport=<port>
Listen for JSON-RPC connections on <port> (default: 8332 or testnet: 18332)
-rpcallowip=<ip>
Allow JSON-RPC connections from specified IP address
-rpcthreads=<n>
Set the number of threads to service RPC calls (default: 4)
-blocknotify=<cmd>
Execute command when the best block changes (%s in cmd is replaced by block hash)
-walletnotify=<cmd>
Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)
-alertnotify=<cmd>
Execute command when a relevant alert is received (%s in cmd is replaced by message)
-upgradewallet
Upgrade wallet to latest format
-keypool=<n>
Set key pool size to <n> (default: 100)
-rescan
Rescan the block chain for missing wallet transactions
-salvagewallet
Attempt to recover private keys from a corrupt wallet.dat
-checkblocks=<n>
How many blocks to check at startup (default: 288, 0 = all)
-checklevel=<n>
How thorough the block verification is (0-4, default: 3)
-txindex
Maintain a full transaction index (default: 0)
-loadblock=<file>
Imports blocks from external blk000??.dat file
-reindex
Rebuild block chain index from current blk000??.dat files
-par=<n>
Set the number of script verification threads (1-16, 0=auto, default: 0)

Block creation options:

-blockminsize=<n>
Set minimum block size in bytes (default: 0)
-blockmaxsize=<n>
Set maximum block size in bytes (default: 250000)
-blockprioritysize=<n> Set maximum size of high-priority/low-fee transactions in bytes (default: 27000)

SSL options: (see the Bitcoin Wiki for SSL setup instructions)
-rpcssl
Use OpenSSL (https) for JSON-RPC connections
-rpcsslcertificatechainfile=<file.cert>
Server certificate file (default: server.cert)
-rpcsslprivatekeyfile=<file.pem>
Server private key (default: server.pem)
-rpcsslciphers=<ciphers>
Acceptable ciphers (default: TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@STRENGTH)

UI options:

-lang=<lang>
Set language, for example "de_DE" (default: system locale)
-min
Start minimized
-splash
Show splash screen on startup (default: 1)