help

$ ./src/bitcoind --help

常用参数解析

  -blocksdir=<dir>
   Specify blocks directory (default: <datadir>/blocks)
   定义blocks的路径，linux下默认~/.bitcoin/blocks，视datadir路经而定

  -conf=<file>
   Specify configuration file. Relative paths will be prefixed by datadir
   location. (default: bitcoin.conf)
   定义配置文件

  -daemon
   Run in the background as a daemon and accept commands
   是否在后台以守护进程方式运行，类似于在linux里面加上‘&’放到后台运行
   但是可以接受其他进程通过RPC方式进行控制，类似矿机等

  -datadir=<dir>
   Specify data directory
   data目录，linux下默认~/.bitcoin

  -testnet
       Use the test chain
       使用比特币的测试链，以便更好地进行交易测试

  -regtest
       Use the regtest chain
       使用本地链测试链

  -logips
   Include IP addresses in debug output (default: 0)
   输出IP地址到调试输出

  -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)
   是否裁剪老旧的块，以减少体积，但是好像第一次跑的时候，还是会全部下一遍，应该是全部下一遍之后，只保留最新的块。

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