以太坊原始碼分析(9)CMD實際操作分析

尹成發表於2018-05-21
原始碼
### cmd包分析
#### cmd下面總共有13個子包，除了util包之外，每個子包都有一個主函式,每個主函式的init方法中都定義了該主函式支援的命令，如

##### geth包下面的：

```
func init() {
    // Initialize the CLI app and start Geth
    app.Action = geth
    app.HideVersion = true // we have a command to print the version
    app.Copyright = "Copyright 2013-2017 The go-ethereum Authors"
    app.Commands = []cli.Command{
        // See chaincmd.go:
        initCommand,
        importCommand,
        exportCommand,
        copydbCommand,
        removedbCommand,
        dumpCommand,
        // See monitorcmd.go:
        monitorCommand,
        // See accountcmd.go:
        accountCommand,
        walletCommand,
        // See consolecmd.go:
        consoleCommand,
        attachCommand,
        javascriptCommand,
        // See misccmd.go:
        makecacheCommand,
        makedagCommand,
        versionCommand,
        bugCommand,
        licenseCommand,
        // See config.go
        dumpConfigCommand,
    }
    sort.Sort(cli.CommandsByName(app.Commands))
}
```


###### 再單獨分析initCommand:

```
initCommand = cli.Command{
Action: utils.MigrateFlags(initGenesis),
Name: "init",
Usage: "Bootstrap and initialize a new genesis block",
ArgsUsage: "<genesisPath>",
Flags: []cli.Flag{
utils.DataDirFlag,
utils.LightModeFlag,
},
Category: "BLOCKCHAIN COMMANDS",
Description: `
The init command initializes a new genesis block and definition for the network.
This is a destructive action and changes the network in which you will be
participating.

```

###### 其中Name是對應命令的指令，action是呼叫該指令去完成的動作，usage表示用途,arguUsage顯示該命令後面跟的引數個數以及每個引數的意義,
###### 該init方法其實就是去初始化創世塊,flags代表的是這個子命令額外可以執行的命令,如改init命令可以攜帶兩個引數，點進去utils.DataDirFlag可以看到：

```
// General settings
DataDirFlag = DirectoryFlag{
Name: "datadir",
Usage: "Data directory for the databases and keystore",
Value: DirectoryString{node.DefaultDataDir()},
}
```


* __可以用 --datadir [dir]來指定資料庫的路徑，如果沒有指定由於該引數有value所以會啟用預設的路徑，也是home目錄下面的.ethereum.__

* __/cmd/wnode/main.go　通過連線其他節點啟動__


* __/cmd/geth /cmd/swarm　都是定義了很多命令__





### eth下cmd的rlpdump子包,該包的主要作用從給定檔案中轉儲RLP資料以可讀的形式．如果檔名被省略，資料將從stdin中讀取

　 /rlpdump

##### 解碼rlp的資料


###### rlpdump的command的help

```
Usage: /tmp/___cmd_rlpdump_test [-noascii] [-hex <data>] [filename]
-hex string
  dump given hex data
-noascii
  don't print ASCII strings readably
-single
  print only the first element, discard the rest

Dumps RLP data from the given file in readable form.
If the filename is omitted, data is read from stdin.

```


###### example1:
```
demo command: --hex f872f870845609a1ba64c0b8660480136e573eb81ac4a664f8f76e4887ba927f791a053ec5ff580b1037a8633320ca70f8ec0cdea59167acaa1debc07bc0a0b3a5b41bdf0cb4346c18ddbbd2cf222f54fed795dde94417d2e57f85a580d87238efc75394ca4a92cfe6eb9debcc3583c26fee8580
success_result_demo:
[
[
5609a1ba,
"d",
[],
0480136e573eb81ac4a664f8f76e4887ba927f791a053ec5ff580b1037a8633320ca70f8ec0cdea59167acaa1debc07bc0a0b3a5b41bdf0cb4346c18ddbbd2cf222f54fed795dde94417d2e57f85a580d87238efc75394ca4a92cfe6eb9debcc3583c26fee85,
"",
],
]
```

###### example2:

```
demo command: --noascii --hex CE0183FFFFFFC4C304050583616263
success_result_demo:
[
01,
ffffff,
[
[
04,
05,
05,
],
],
616263,
]



```
### cmd包下的p2psim子包的分析, p2psim is a command line client for the HTTP API

##### 首先我們啟動對應的main函式,對應的啟動引數是`--help`,來檢視該包下所有命令的使用,結果如下:

```
NAME:
___go_build_main_go__1_ - devp2p simulation command-line client

USAGE:
___go_build_main_go__1_ [global options] command [command options] [arguments...]

VERSION:
0.0.0

COMMANDS:
show show network information
events stream network events
snapshot create a network snapshot to stdout
load load a network snapshot from stdin
node manage simulation nodes
help, h Shows a list of commands or help for one command

GLOBAL OPTIONS:
--api value simulation API URL (default: "http://localhost:8888") [$P2PSIM_API_URL]
--help, -h show help
--version, -v print the version
```

##### 該子包提供如何下的命令:
```
p2psim show
p2psim events [--current] [--filter=FILTER]
p2psim snapshot
p2psim load
p2psim node create [--name=NAME] [--services=SERVICES] [--key=KEY]
p2psim node list
p2psim node show <node>
p2psim node start <node>
p2psim node stop <node>
p2psim node connect <node> <peer>
p2psim node disconnect <node> <peer>
p2psim node rpc <node> <method> [<args>] [--subscribe]

```

##### 要正常使用該子包下的命令，我們需要執行`/p2p/simulations/examples/ping-pong.go`的主函式來啟動一個包含執行簡單的節點的模擬網路.
正常啟動後,你將看到:
```
INFO [01-23|11:17:10] using sim adapter
INFO [01-23|11:17:10] starting simulation server on 0.0.0.0:8888...

```

##### 該服務啟動後,提供如下的API,其作用等同於上面的命令,命令呼叫的實現其實就是呼叫API,訪問的路徑字首就是`0.0.0.0:8888`:
```
GET / Get network information
POST /start Start all nodes in the network
POST /stop Stop all nodes in the network
GET /events Stream network events
GET /snapshot Take a network snapshot
POST /snapshot Load a network snapshot
POST /nodes Create a node
GET /nodes Get all nodes in the network
GET /nodes/:nodeid Get node information
POST /nodes/:nodeid/start Start a node
POST /nodes/:nodeid/stop Stop a node
POST /nodes/:nodeid/conn/:peerid Connect two nodes
DELETE /nodes/:nodeid/conn/:peerid Disconnect two nodes
GET /nodes/:nodeid/rpc Make RPC requests to a node via WebSocket

```

##### 此處不深究API,模擬網路的服務已經起來了,下面開始p2psim包下命令的使用:

__/p2psim__

* show
```
function:顯示當前模擬網路的狀態
args:""
demo: show
notice:
success_result_demo:
NODES 0
CONNS 0

```

* snapshot
```
function:匯出當前模擬網路的節點資訊
args:""
demo: shapshot
notice:
success_result_demo:
{"nodes":[{"node":{"config":{"id":"085416957c3a0afef6aabe6c0d6b27b7cf8a61f28a3a5439010fcc9e49945a1818ea38946dda8c82004b231ab771450ee0d87886163b65eaa48ecfbcb85e871d","private_key":"3480d230f453e7c207bbd3b770bf774dc8a17e599394f9283147a35c3ead561c","name":"node1","services":["ping-pong"]},"up":true}},{"node":{"config":{"id":"cedbaecccfe42d04b742d1be6e924e0654a7eb1aa584d497f98d24951b156ada84bcfc6455ff37ba1fc81179d0a7c3da1ba34945be19d1fe5cd4c8a32a659a7b","private_key":"b7592cdeee6195c4486fcdd8007e1aedfd3a49e6c9f53e0845bf977d4ad043cc","name":"node2","services":["ping-pong"]},"up":false}}],"conns":[{"one":"cedbaecccfe42d04b742d1be6e924e0654a7eb1aa584d497f98d24951b156ada84bcfc6455ff37ba1fc81179d0a7c3da1ba34945be19d1fe5cd4c8a32a659a7b","other":"085416957c3a0afef6aabe6c0d6b27b7cf8a61f28a3a5439010fcc9e49945a1818ea38946dda8c82004b231ab771450ee0d87886163b65eaa48ecfbcb85e871d","up":false}]}


```

* node
> * create
```
function:建立一個節點
args:[--name=NAME] [--services=SERVICES] [--key=KEY]
demo: node create --name node1
notice:
success_result_demo:
Created node1
```
> * list
```
function:列出當前模擬網路的節點資訊
args:""
demo: node list
notice:
success_result_demo:
NAME PROTOCOLS ID
node1 085416957c3a0afef6aabe6c0d6b27b7cf8a61f28a3a5439010fcc9e49945a1818ea38946dda8c82004b231ab771450ee0d87886163b65eaa48ecfbcb85e871d
node2 cedbaecccfe42d04b742d1be6e924e0654a7eb1aa584d497f98d24951b156ada84bcfc6455ff37ba1fc81179d0a7c3da1ba34945be19d1fe5cd4c8a32a659a7b

```
> * show
```
function:檢視模擬網路中某個節點的具體資訊
args:<node>
demo: node show node1
notice:
success_result_demo:
NAME node1
PROTOCOLS
ID 085416957c3a0afef6aabe6c0d6b27b7cf8a61f28a3a5439010fcc9e49945a1818ea38946dda8c82004b231ab771450ee0d87886163b65eaa48ecfbcb85e871d
ENODE enode://085416957c3a0afef6aabe6c0d6b27b7cf8a61f28a3a5439010fcc9e49945a1818ea38946dda8c82004b231ab771450ee0d87886163b65eaa48ecfbcb85e871d@127.0.0.1:30303
```
> * start
```
function:啟動一個節點
args:<node>
demo: node start node1
notice:
success_result_demo:
Started node1
```
> * connect
```
function:將一個節點連線到另外一個節點
args:<node> <peer>
demo: node connect node2 node1
notice:
success_result_demo:
Connected node2 to node1

```
> * disconnect

```
function:節點斷開連線
args:<node> <peer>
demo: node disconnect node2 node1
notice:
success_result_demo:
Disconnected node2 from node1

```
> * stop

```
function:停止一個節點
args:<node>
demo: node stop node2
notice:
success_result_demo:
Stopped node2

```
> * rpc

```
function:呼叫rpc介面
args:<node> <method> [<args>] [--subscribe]
demo: node rpc node1 admin
notice:
success_result_demo:
　// TODO

```
### cmd包下的geth子包主函式啟動的各個子命令解析


#### /geth

* __init__
```
function:匯入創世塊的json,以指定的json作為創世塊
args:<genesisPath>
demo: init /home/yujian/eth-go/genesis.json
notice:ethereum預設建立路徑為home目錄的.ethereum,如果該目錄下已經寫入過創世快，會執行失敗
success_result_demo:
WARN [01-16|10:25:12] No etherbase set and no accounts found as default
INFO [01-16|10:25:12] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=16 handles=16
INFO [01-16|10:25:12] Writing custom genesis block
INFO [01-16|10:25:12] Successfully wrote genesis state database=chaindata hash=bf2891…ad1419
INFO [01-16|10:25:12] Allocated cache and file handles database=/home/yujian/.ethereum/geth/lightchaindata cache=16 handles=16
INFO [01-16|10:25:12] Writing custom genesis block
INFO [01-16|10:25:12] Successfully wrote genesis state database=lightchaindata hash=bf2891…ad1419
```

* __import__
```
function:匯入區塊資料到當前執行的鏈中
args:<filename> (<filename 2> ... <filename N>)
demo: import /home/yujian/eth-block.txt
notice:如果匯入的檔案只要一個是錯誤的，那麼會失敗，如果有多個檔案錯誤，那麼程式會繼續執行忽略錯誤的．
success_result_demo:
WARN [01-16|11:00:32] No etherbase set and no accounts found as default
INFO [01-16|11:00:32] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=128 handles=1024
Import done in 306.866µs.

INFO [01-16|11:00:32] Disk storage enabled for ethash caches dir=/home/yujian/.ethereum/geth/ethash count=3
Compactions
INFO [01-16|11:00:32] Disk storage enabled for ethash DAGs dir=/home/yujian/.ethash count=2
Level | Tables | Size(MB) | Time(sec) | Read(MB) | Write(MB)
-------+------------+---------------+---------------+---------------+---------------
INFO [01-16|11:00:32] Loaded most recent local header number=0 hash=bf2891…ad1419 td=33554432
0 | 3 | 0.00094 | 0.00000 | 0.00000 | 0.00000
INFO [01-16|11:00:32] Loaded most recent local full block number=0 hash=bf2891…ad1419 td=33554432

Trie cache misses: 0
INFO [01-16|11:00:32] Loaded most recent local fast block number=0 hash=bf2891…ad1419 td=33554432
Trie cache unloads: 0

INFO [01-16|11:00:32] Importing blockchain file=/home/yujian/eth-block.txt
Object memory: 34.677 MB current, 34.670 MB peak
System memory: 74.100 MB current, 73.850 MB peak
Allocations: 0.015 million
GC pause: 10.454997ms

Compacting entire database...
INFO [01-16|11:00:33] Database closed database=/home/yujian/.ethereum/geth/chaindata
Compaction done in 64.422235ms.

Compactions
Level | Tables | Size(MB) | Time(sec) | Read(MB) | Write(MB)
-------+------------+---------------+---------------+---------------+---------------
0 | 0 | 0.00000 | 0.00451 | 0.00000 | 0.00021
1 | 1 | 0.00053 | 0.00435 | 0.00114 | 0.00053
```

* __export__
```
function:匯出區塊資料到指定的檔案
args:<filename> [<blockNumFirst> <blockNumLast>]
demo: export /home/yujian/eth-block.txt
notice:
success_result_demo:
WARN [01-16|10:51:36] No etherbase set and no accounts found as default
INFO [01-16|10:51:36] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=128 handles=1024
INFO [01-16|10:51:36] Disk storage enabled for ethash caches dir=/home/yujian/.ethereum/geth/ethash count=3
INFO [01-16|10:51:36] Disk storage enabled for ethash DAGs dir=/home/yujian/.ethash count=2
Export done in 628.951µsINFO [01-16|10:51:36] Loaded most recent local header number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|10:51:36] Loaded most recent local full block number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|10:51:36] Loaded most recent local fast block number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|10:51:36] Exporting blockchain file=/home/yujian/eth-block.txt
INFO [01-16|10:51:36] Exporting batch of blocks count=1
INFO [01-16|10:51:36] Exported blockchain file=/home/yujian/eth-block.txt
```


* __copydb__
```
function:從存在的鏈資料資料夾中建立一條本地鏈
args:<sourceChaindataDir>
demo: copydb /home/yujian/eth-block.txt
notice:
success_result_demo:
WARN [01-16|11:35:55] No etherbase set and no accounts found as default
INFO [01-16|11:35:55] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=128 handles=1024
INFO [01-16|11:35:55] Disk storage enabled for ethash caches dir=/home/yujian/.ethereum/geth/ethash count=3
INFO [01-16|11:35:55] Disk storage enabled for ethash DAGs dir=/home/yujian/.ethash count=2
INFO [01-16|11:35:55] Loaded most recent local header number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|11:35:55] Loaded most recent local full block number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|11:35:55] Loaded most recent local fast block number=0 hash=bf2891…ad1419 td=33554432
INFO [01-16|11:35:55] Allocated cache and file handles database=/home/yujian/eth-go/geth/chaindata cache=128 handles=256
INFO [01-16|11:35:55] Block synchronisation started
INFO [01-16|11:35:55] Imported new state entries count=1 elapsed=33.277µs processed=1 pending=0 retry=0 duplicate=0 unexpected=0
INFO [01-16|11:35:56] Imported new block headers count=11 elapsed=1.276s number=11 hash=ec3374…59a2ba ignored=0
Database copy done in 1.280940454s
Compacting entire database...
INFO [01-16|11:35:56] Imported new chain segment blocks=11 txs=0 mgas=0.000 elapsed=1.961ms mgasps=0.000 number=11 hash=ec3374…59a2ba
Compaction done in 11.130389ms.
```

* __removedb__
```
function:移除當前鏈的資料庫
args:""
demo: removedb
notice:預設當前鏈的資料在home目錄下的.ethereum目錄下
success_result_demo:
WARN [01-16|11:48:09] No etherbase set and no accounts found as default
/home/yujian/.ethereum/geth/chaindata
Remove this database? [y/N] y
/home/yujian/.ethereum/geth/lightchaindata
INFO [01-16|11:48:19] Database successfully deleted database=chaindata elapsed=7.832ms
Remove this database? [y/N] y
INFO [01-16|11:48:27] Database successfully deleted database=lightchaindata elapsed=481.229µs
```


* __dump__
```
function:轉存指定的塊
args:[<blockHash> | <blockNum>]...
demo: dump 0
notice:
success_result_demo:
"storage": {}
},
"af3cb5965933e7dad883693b9c3e15beb68a4873": {
"balance": "2000000000000000000000",
"nonce": 0,
"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
"code": "",
"storage": {}
},
"af4493e8521ca89d95f5267c1ab63f9f45411e1b": {
"balance": "200000000000000000000",
"nonce": 0,
"root": "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"codeHash": "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
"code": "",
"storage": {}
},
}
}
INFO [01-16|14:02:06] Database closed database=/home/yujian/.ethereum/geth/chaindata
```


* __monitor__
```
function:監視和視覺化節點指標
args:""
demo: monitor
notice:該命令本地未調通,需要先啟鏈，才能呼叫該命令去看監控的狀態
success_result_demo:
// TODO



```


* __account__
```
function:管理賬戶
args:"[new|list|update|import]"
demo: account new
notice:“帳戶匯入”選項只能用於匯入通用金鑰檔案
success_result_demo:
WARN [01-16|14:44:44] No etherbase set and no accounts found as default
Your new account is locked with a password. Please give a password. Do not forget this password.
!! Unsupported terminal, password will be echoed.
Passphrase: 123456

Repeat passphrase: 123456

Address: {2a23e9223d7af9c56f5abd0c8226021b51c98cbc}

Process finished with exit code 0
```


* __wallet__
```
function:匯入預付款錢包(一般用不到，用的是account功能)
args:""
demo: wallet import
notice:"錢包匯入"選項只能用於匯入預售錢包
success_result_demo:

```
　　


* __console__
```
function:開啟一條私有鏈,並開啟一個視覺化的js錢包控制檯
args:""
demo: console
notice:
success_result_demo:
INFO [01-16|15:26:13] Starting peer-to-peer node instance=Geth/v1.7.3-unstable/linux-amd64/go1.9.2
INFO [01-16|15:26:13] Allocated cache and file handles database=/home/yujian/.ethereum/geth/chaindata cache=128 handles=1024
INFO [01-16|15:26:14] Initialised chain configuration config="{ChainID: 1 Homestead: 1150000 DAO: 1920000 DAOSupport: true EIP150: 2463000 EIP155: 2675000 EIP158: 2675000 Byzantium: 4370000 Engine: ethash}"
INFO [01-16|15:26:14] Disk storage enabled for ethash caches dir=/home/yujian/.ethereum/geth/ethash count=3
INFO [01-16|15:26:14] Disk storage enabled for ethash DAGs dir=/home/yujian/.ethash count=2
INFO [01-16|15:26:14] Initialising Ethereum protocol versions="[63 62]" network=1
INFO [01-16|15:26:14] Loaded most recent local header number=1127484 hash=ae7ee2…52ae4c td=8985161313979839462
INFO [01-16|15:26:14] Loaded most recent local full block number=0 hash=d4e567…cb8fa3 td=17179869184
INFO [01-16|15:26:14] Loaded most recent local fast block number=1092806 hash=6e839a…2eb127 td=8395031237882431385
INFO [01-16|15:26:14] Upgrading chain index type=bloombits percentage=80
INFO [01-16|15:26:14] Loaded local transaction journal transactions=0 dropped=0
INFO [01-16|15:26:14] Regenerated local transaction journal transactions=0 accounts=0
INFO [01-16|15:26:14] Starting P2P networking
INFO [01-16|15:26:16] UDP listener up self=enode://bef014afb2b63c749d1e3917a25dc9e508cb67e6010965f11695beef50c29f40a5949fc2082487fadb262c30ff2fb626ce86d4a7cf994d025f5dfee7231051e6@[::]:30303
INFO [01-16|15:26:16] RLPx listener up self=enode://bef014afb2b63c749d1e3917a25dc9e508cb67e6010965f11695beef50c29f40a5949fc2082487fadb262c30ff2fb626ce86d4a7cf994d025f5dfee7231051e6@[::]:30303
INFO [01-16|15:26:16] IPC endpoint opened: /home/yujian/.ethereum/geth.ipc
Welcome to the Geth JavaScript console!

instance: Geth/v1.7.3-unstable/linux-amd64/go1.9.2
coinbase: 0x2a23e9223d7af9c56f5abd0c8226021b51c98cbc
at block: 0 (Thu, 01 Jan 1970 08:00:00 CST)
datadir: /home/yujian/.ethereum
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0
```



* __attach__
```
function:開啟一個視覺化的js錢包控制檯(連線到一個指定的鏈)
args:
--jspath loadScript JavaScript root path for loadScript (default: ".")
--exec value Execute JavaScript statement
--preload value Comma separated list of JavaScript files to preload into the console
--datadir "/root/.ethereum" Data directory for the databases and keystore
demo:attach --datadir="/home/yujian/.ethereum/geth.ipc"
notice:必須啟動一條本地鏈，這樣才能連線過去
success_result_demo:
Welcome to the Geth JavaScript console!

instance: Geth/v1.7.3-unstable/linux-amd64/go1.9.2
coinbase: 0x2a23e9223d7af9c56f5abd0c8226021b51c98cbc
at block: 0 (Thu, 01 Jan 1970 08:00:00 CST)
datadir: /home/yujian/.ethereum
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 txpool:1.0 web3:1.0
```

* __js__
```
　function:執行指定的js檔案
args:<jsfile> [jsfile...]
demo:js
notice:
success_result_demo:



```


* __makecache__

```
function:生成ethhash驗證快取(測試使用)
args:<blockNum> <outputDir>
demo:makecache 0 /home/yujian/
notice:
success_result_demo:
在對應的輸出目錄，將會生成一個cache檔案,如 cache-R23-0000000000000000
```


* __makedag__

```
function:生成ethhash mining dag(測試使用)
args:<blockNum> <outputDir>
demo:makedag 0 /home/yujian/
notice:
success_result_demo:
INFO [01-16|17:50:36] Generating DAG in progress epoch=0 percentage=92 elapsed=3m2.525s
INFO [01-16|17:50:38] Generating DAG in progress epoch=0 percentage=93 elapsed=3m4.338s
INFO [01-16|17:50:40] Generating DAG in progress epoch=0 percentage=94 elapsed=3m6.058s
INFO [01-16|17:50:41] Generating DAG in progress epoch=0 percentage=95 elapsed=3m7.795s
INFO [01-16|17:50:43] Generating DAG in progress epoch=0 percentage=96 elapsed=3m9.542s
INFO [01-16|17:50:45] Generating DAG in progress epoch=0 percentage=97 elapsed=3m11.380s
INFO [01-16|17:50:47] Generating DAG in progress epoch=0 percentage=98 elapsed=3m13.129s
INFO [01-16|17:50:49] Generating DAG in progress epoch=0 percentage=99 elapsed=3m15.303s
INFO [01-16|17:50:49] Generated ethash verification cache epoch=0 elapsed=3m15.306s

Process finished with exit code 0

在對應的輸出目錄,將會生成一個full檔案,如 full-R23-0000000000000000


```

* __version__

```
function:列印版本資料
args:""
demo:version
notice:
success_result_demo:
Geth
Version: 1.7.3-unstable
Architecture: amd64
Protocol Versions: [63 62]
Network Id: 1
Go Version: go1.9.2
Operating System: linux
GOPATH=/home/yujian/blockchain-workspace/go-project
GOROOT=/usr/local/go
　　
```

* __bug__

```
function:開啟一個視窗,直接跳轉到ethereum的github倉庫的issue
args:""
demo:bug
notice:
success_result_demo:
　　執行後會自動開啟瀏覽器，跳轉到ethereum的issue編輯頁面　


```

* __license__

```
function:顯示geth的license資訊
args:""
demo:license
notice:
success_result_demo:
Geth is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Geth is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with geth. If not, see <http://www.gnu.org/licenses/>.
```

* __dumpconfig__

```
function:顯示配置資訊
args:""
demo:dumpconfig
notice:
success_result_demo:
　[Eth]
NetworkId = 1
SyncMode = "fast"
LightPeers = 20
DatabaseCache = 128
Etherbase = "0x2a23e9223d7af9c56f5abd0c8226021b51c98cbc"
GasPrice = 18000000000
EthashCacheDir = "ethash"
EthashCachesInMem = 2
EthashCachesOnDisk = 3
EthashDatasetDir = "/home/yujian/.ethash"
EthashDatasetsInMem = 1
EthashDatasetsOnDisk = 2
EnablePreimageRecording = false

[Eth.TxPool]
NoLocals = false
Journal = "transactions.rlp"
Rejournal = 3600000000000
PriceLimit = 1
PriceBump = 10
AccountSlots = 16
GlobalSlots = 4096
AccountQueue = 64
GlobalQueue = 1024
Lifetime = 10800000000000

[Eth.GPO]
Blocks = 10
Percentile = 50

[Shh]
MaxMessageSize = 1048576
MinimumAcceptedPOW = 2e-01

[Node]
DataDir = "/home/yujian/.ethereum"
IPCPath = "geth.ipc"
HTTPPort = 8545
HTTPModules = ["net", "web3", "eth", "shh"]
WSPort = 8546
WSModules = ["net", "web3", "eth", "shh"]

[Node.P2P]
MaxPeers = 25
NoDiscovery = false
DiscoveryV5Addr = ":30304"
BootstrapNodes = ["enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303", "enode://3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02d743e03218e57a33fb94523adb54032871a6c51b2cc5514cb7c7e35b3ed0a99@13.93.211.84:30303", "enode://78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a95e94f847f689fc723399d2e31129d182f7ef3863f2b4c820abbf3ab2722344d@191.235.84.50:30303", "enode://158f8aab45f6d19c6cbf4a089c2670541a8da11978a2f90dbf6a502a4a3bab80d288afdbeb7ec0ef6d92de563767f3b1ea9e8e334ca711e9f8e2df5a0385e8e6@13.75.154.138:30303", "enode://1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082@52.74.57.123:30303", "enode://979b7fa28feeb35a4741660a16076f1943202cb72b6af70d327f053e248bab9ba81760f39d0701ef1d8f89cc1fbd2cacba0710a12cd5314d5e0c9021aa3637f9@5.1.83.226:30303"]
BootstrapNodesV5 = ["enode://0cc5f5ffb5d9098c8b8c62325f3797f56509bff942704687b6530992ac706e2cb946b90a34f1f19548cd3c7baccbcaea354531e5983c7d1bc0dee16ce4b6440b@40.118.3.223:30305", "enode://1c7a64d76c0334b0418c004af2f67c50e36a3be60b5e4790bdac0439d21603469a85fad36f2473c9a80eb043ae60936df905fa28f1ff614c3e5dc34f15dcd2dc@40.118.3.223:30308", "enode://85c85d7143ae8bb96924f2b54f1b3e70d8c4d367af305325d30a61385a432f247d2c75c45c6b4a60335060d072d7f5b35dd1d4c45f76941f62a4f83b6e75daaf@40.118.3.223:30309"]
StaticNodes = []
TrustedNodes = []
ListenAddr = ":30303"
EnableMsgEvents = false

[Dashboard]
Host = "localhost"
Port = 8080
Refresh = 3000000000　
```


##### 參考資料
* [eth錢包建立](https://www.myetherwallet.com/#generate-wallet)
* [eth命令使用解釋](http://www.blockcode.org/archives/185)







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