前面介绍了以太坊生成的执行程序，作为主要执行程序geth，将作为分析的首要分析对象。首先从其输入命令标示分析开始。
geth
以太坊CLI（command-line interface）命令行客户端。
geth -help
NAME:
geth - the go-ethereum command line interface
Copyright 2013-2017 The go-ethereum Authors
USAGE:
geth [options] command [command options] [arguments...]
VERSION:
1.8.2-unstable-fa375955
COMMANDS:
account Manage accounts
attach Start an interactive JavaScript environment (connect to node)
bug opens a window to report a bug on the geth repo
console Start an interactive JavaScript environment
copydb Create a local chain from a target chaindata folder
dump Dump a specific block from storage
dumpconfig Show configuration values
export Export blockchain into file
import Import a blockchain file
init Bootstrap and initialize a new genesis block
js Execute the specified JavaScript files
license Display license information
makecache Generate ethash verification cache (for testing)
makedag Generate ethash mining DAG (for testing)
monitor Monitor and visualize node metrics
removedb Remove blockchain and state databases
version Print version numbers
wallet Manage Ethereum presale wallets
help, h Shows a list of commands or help for one command
ETHEREUM OPTIONS:
--config value TOML configuration file
--datadir "/Users/Library/Ethereum" Data directory for the databases and keystore
--keystore Directory for the keystore (default = inside the datadir)
--nousb Disables monitoring for and managing USB hardware wallets
--networkid value Network identifier (integer, 1=Frontier, 2=Morden (disused), 3=Ropsten, 4=Rinkeby) (default: 1)
--testnet Ropsten network: pre-configured proof-of-work test network
--rinkeby Rinkeby network: pre-configured proof-of-authority test network
--syncmode "fast" Blockchain sync mode ("fast", "full", or "light")
--gcmode value Blockchain garbage collection mode ("full", "archive") (default: "full")
--ethstats value Reporting URL of a ethstats service (nodename:secret@host:port)
--identity value Custom node name
--lightserv value Maximum percentage of time allowed for serving LES requests (0-90) (default: 0)
--lightpeers value Maximum number of LES client peers (default: 100)
--lightkdf Reduce key-derivation RAM & CPU usage at some expense of KDF strength
命令分析
account: 账户管理 attach: 连接到JavaScript交互环境 bug: 打开一个新窗口报告geth库的bug console: 开启一个JavaScript交互环境 copydb: 从一个目标莲数据文件夹拷贝到本地的链上 dump: 从存储中删除掉一个指定的区块 dumpconfig: 显示配置值 export: 导出区块链到文件 import: 从文件导入区块链 init: 通过一个向导初始化一个新的创世区块(genesis block!) js: 执行一个指定的JavaScript文件 license: 展示许可信息 makecache: 生成ethash校验缓存（用于测试），ethash是以太坊的计划性的PoW（工作量证明）算法。 makedag: 生成ethash挖矿DAG(用于测试)，DAG是一个比特币的扩容方案 monitor: 监控使节点权值可视化 removedb: 除去区块链和状态数据库 version: 打印版本号 wallet: 管理以太坊预售钱包、 help: 帮助命令