Add documentation

docs/utils.md

@@ -577,6 +577,46 @@ Common arguments:
 
 ```
 
+## Show previous Backtest results
+
+Allows you to show previous backtest results.
+Adding `--show-pair-list` outputs a sorted pair list you can easily copy/paste into your configuration (omitting bad pairs).
+
+??? Warning "Strategy overfitting"
+    Only using winning pairs can lead to an overfitted strategy, which will not work well on future data. Make sure to extensively test your strategy in dry-run before risking real money.
+
+```
+usage: freqtrade backtest-show [-h] [-v] [--logfile FILE] [-V] [-c PATH]
+                               [-d PATH] [--userdir PATH]
+                               [--export-filename PATH] [--show-pair-list]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --export-filename PATH
+                        Save backtest results to the file with this filename.
+                        Requires `--export` to be set as well. Example:
+                        `--export-filename=user_data/backtest_results/backtest
+                        _today.json`
+  --show-pair-list      Show backtesting pairlist sorted by profit.
+
+Common arguments:
+  -v, --verbose         Verbose mode (-vv for more, -vvv to get all messages).
+  --logfile FILE        Log to the file specified. Special values are:
+                        'syslog', 'journald'. See the documentation for more
+                        details.
+  -V, --version         show program's version number and exit
+  -c PATH, --config PATH
+                        Specify configuration file (default:
+                        `userdir/config.json` or `config.json` whichever
+                        exists). Multiple --config options may be used. Can be
+                        set to `-` to read config from stdin.
+  -d PATH, --datadir PATH
+                        Path to directory with historical backtesting data.
+  --userdir PATH, --user-data-dir PATH
+                        Path to userdata directory.
+
+```
+
 ## List Hyperopt results
 
 You can list the hyperoptimization epochs the Hyperopt module evaluated previously with the `hyperopt-list` sub-command.

freqtrade/commands/arguments.py

@@ -175,15 +175,15 @@ class Arguments:
         self.parser = argparse.ArgumentParser(description='Free, open source crypto trading bot')
         self._build_args(optionlist=['version'], parser=self.parser)
 
-        from freqtrade.commands import (start_backtest_show, start_backtesting,
-                                        start_convert_data, start_convert_trades,
-                                        start_create_userdir, start_download_data, start_edge,
-                                        start_hyperopt, start_hyperopt_list, start_hyperopt_show,
-                                        start_install_ui, start_list_data, start_list_exchanges,
-                                        start_list_markets, start_list_strategies,
-                                        start_list_timeframes, start_new_config, start_new_strategy,
-                                        start_plot_dataframe, start_plot_profit, start_show_trades,
-                                        start_test_pairlist, start_trading, start_webserver)
+        from freqtrade.commands import (start_backtest_show, start_backtesting, start_convert_data,
+                                        start_convert_trades, start_create_userdir,
+                                        start_download_data, start_edge, start_hyperopt,
+                                        start_hyperopt_list, start_hyperopt_show, start_install_ui,
+                                        start_list_data, start_list_exchanges, start_list_markets,
+                                        start_list_strategies, start_list_timeframes,
+                                        start_new_config, start_new_strategy, start_plot_dataframe,
+                                        start_plot_profit, start_show_trades, start_test_pairlist,
+                                        start_trading, start_webserver)
 
         subparsers = self.parser.add_subparsers(dest='command',
                                                 # Use custom message when no subhandler is added