Add monero-blockchain-export reference

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
+max_line_length = 120
+
+[*.py]
+indent_size = 4

docs/interacting/monero-blockchain-export-reference.md

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+---
+title: monero-blockchain-export - Reference | Monero Documentation
+---
+# `monero-blockchain-export` - Reference
+
+!!! warning
+    Nowadays, there is little usage for raw blockchain export / import. In the past the p2p blockchain download was much slower. Back than blockchain.raw file was used to speed up the process at the expense of trusting the source. 
+
+## Overview
+
+The tool dumps local blockchain to raw format, known as the `blockchain.raw` file.
+
+This could be useful if you want to process blockchain efficiently with your custom tools,
+as the raw format is probably easier to work with than Monero's custom lmdb database.
+
+The tool works on your local copy of the blockchain. It does **not** require `monerod` running.
+
+## Syntax
+
+`./monero-blockchain-export [options]`
+
+Example:
+
+`./monero-blockchain-export --help`
+
+## Running
+
+Go to directory where you unpacked Monero.
+
+`./monero-blockchain-export --stagenet --output-file=/tmp/blockchain.raw`
+
+
+## Options
+
+### Help
+
+| Option              | Description
+|---------------------|--------------------------------------------------------------------------------------------------------------------------------------
+| `--help`            | Enlist available options.
+
+### Pick network
+
+| Option              | Description
+|---------------------|--------------------------------------------------------------------------------------------------------------------------------------
+| (missing)           | By default monero-blockchain-export assumes [mainnet](/infrastructure/networks#mainnet).
+| `--stagenet`        | Export [stagenet](/infrastructure/networks#stagenet) blockchain.
+| `--testnet`         | Export [testnet](/infrastructure/networks#testnet) blockchain.
+
+### Logging
+
+Specifying the log file path is not supported.
+
+| Option              | Description
+|---------------------|--------------------------------------------------------------------------------------------------------------------------------------
+| `--log-level`       | `0-4` with `0` being minimal logging and `4` being full tracing. Defaults to `0`. These are general presets and do not directly map to severity levels. For example, even with minimal `0`, you may see some most important `INFO` entries. Example: <br />`./monero-blockchain-export --log-level=1`
+
+### Input
+
+| Option              | Description
+|---------------------|--------------------------------------------------------------------------------------------------------------------------------------
+| `--data-dir`        | Full path to data directory. This is where the blockchain, log files, and p2p network memory are stored. For defaults and details see [data directory](/interacting/overview/#data-directory).
+| `--database`        | The only valid value seems to be `lmdb` (the default).
+
+### Output
+
+| Option              | Description
+|---------------------|--------------------------------------------------------------------------------------------------------------------------------------
+| `--output-file`     | Specify output file path. The default is `$DATA_DIR/export/blockchain.raw`. Example: <br />`./monero-blockchain-export --output-file=/tmp/blockchain.raw`
+| `--blocksdat`       | Output in blocks.dat format.
+| `--block-stop`      | Block number to stop the export at. Value `0` means full export (the default).
+
+## Reference
+
+* [https://github.com/monero-project/monero/tree/master/src/blockchain_utilities](https://github.com/monero-project/monero/tree/master/src/blockchain_utilities)

docs/interacting/monerod-reference.md

@@ -62,9 +62,9 @@ The following groups are only to make reference easier to follow. The daemon its
 
 | Option              | Description
 |---------------------|--------------------------------------------------------------------------------------------------------------------------------------
-| `--help`            | Enlists available options.
-| `--version`         | Shows `monerod` version to stdout. Example: <br />`Monero 'Lithium Luna' (v0.12.3.0-release)`
-| `--os-version`      | Shows build timestamp and target operating system. Example output:<br />`OS: Linux #1 SMP PREEMPT Fri Aug 24 12:48:58 UTC 2018 4.18.5-arch1-1-ARCH`.
+| `--help`            | Enlist available options.
+| `--version`         | Show `monerod` version to stdout. Example: <br />`Monero 'Lithium Luna' (v0.12.3.0-release)`
+| `--os-version`      | Show build timestamp and target operating system. Example output:<br />`OS: Linux #1 SMP PREEMPT Fri Aug 24 12:48:58 UTC 2018 4.18.5-arch1-1-ARCH`.
 
 #### Pick network
 

mkdocs.yml

@@ -13,6 +13,7 @@ nav:
   - Config: 'interacting/monero-config-file.md'
   - monerod: 'interacting/monerod-reference.md'
   - monero-wallet-gui: 'interacting/monero-wallet-gui-reference.md'
+  - monero-blockchain-export: 'interacting/monero-blockchain-export-reference.md'
 - Technical specs: 'technical-specs.md'
 - Cryptography:
     - Introduction: 'cryptography/introduction.md'