Added a couple simple example for using tmux or byobu to launch cmd2 applications #1399
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| # List of cmd2 examples | ||
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| {% | ||
| include-markdown "../../examples/README.md" | ||
| %} |
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| # cmd2 Examples | ||
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| The [examples](https://github.com/python-cmd2/cmd2/tree/master/examples) directory within the `cmd2` repository contains a number of simple self-contained examples which each demonstrate a few particular features of `cmd2`. None of them are representative of a full real-world complex `cmd2` application, if you are looking for that then see [Projects using cmd2](https://github.com/python-cmd2/cmd2?tab=readme-ov-file#projects-using-cmd2). | ||
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| ## List of cmd2 examples | ||
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| Here is the list of examples in alphabetical order by filename along with a brief description of each: | ||
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| - [alias_startup.py](https://github.com/python-cmd2/cmd2/blob/master/examples/alias_startup.py) | ||
| - Demonstrates how to add custom command aliases and how to run an initialization script at startup | ||
| - [arg_decorators.py](https://github.com/python-cmd2/cmd2/blob/master/examples/arg_decorators.py) | ||
| - Demonstrates how to use the `cmd2.with_argparser` decorator to specify command arguments using [argparse](https://docs.python.org/3/library/argparse.html) | ||
| - [arg_print.py](https://github.com/python-cmd2/cmd2/blob/master/examples/arg_print.py) | ||
| - Demonstrates how arguments and options get parsed and passed to commands and shows how shortcust work | ||
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| - [argparse_completion.py](https://github.com/python-cmd2/cmd2/blob/master/examples/argparse_completion.py) | ||
| - Shows how to integrate tab-completion with argparse-based commands | ||
| - [async_printing.py](https://github.com/python-cmd2/cmd2/blob/master/examples/async_printing.py) | ||
| - Shows how to asynchronously print alerts, update the prompt in realtime, and change the window title | ||
| - [basic.py](https://github.com/python-cmd2/cmd2/blob/master/examples/basic.py) | ||
| - Shows how to add a command, add help for it, and create persistent command history for your application | ||
| - [basic_completion.py](https://github.com/python-cmd2/cmd2/blob/master/examples/basic_completion.py) | ||
| - Show how to enable custom tab completion by assigning a completer function to `do_*` commands | ||
| - [cmd2_as_argument.py](https://github.com/python-cmd2/cmd2/blob/master/examples/cmd_as_argument.py) | ||
| - Demonstrates how to accept and parse command-line arguments when invoking a cmd2 application | ||
| - [colors.py](https://github.com/python-cmd2/cmd2/blob/master/examples/colors.py) | ||
| - Show various ways of using colorized output within a cmd2 application | ||
| - [custom_parser.py](https://github.com/python-cmd2/cmd2/blob/master/examples/custom_parser.py) | ||
| - Demonstrates how to create your own customer `Cmd2ArgumentParser`; used by the `override_parser.py` example | ||
| - [decorator_example.py](https://github.com/python-cmd2/cmd2/blob/master/examples/decorator_example.py) | ||
| - Shows how to use cmd2's various argparse decotrators to processes command-line arguments | ||
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| - [default_categories.py](https://github.com/python-cmd2/cmd2/blob/master/examples/default_categories.py) | ||
| - Demonstrates usage of `@with_default_category` decorator to group and categorize commands and `CommandSet` use | ||
| - [dynamic_commands.py](https://github.com/python-cmd2/cmd2/blob/master/examples/dynamic_commands.py) | ||
| - Shows how `do_*` commands can be dynamically created programatically at runtime | ||
| - [environment.py](https://github.com/python-cmd2/cmd2/blob/master/examples/environment.py) | ||
| - Shows how to create custom `cmd2.Settable` parameters which serve as internal environment variables | ||
| - [event_loops.py](https://github.com/python-cmd2/cmd2/blob/master/examples/event_loops.py) | ||
| - Shows how to integrate a `cmd2` application with an external event loop which isn't managed by `cmd2` | ||
| - [example.py](https://github.com/python-cmd2/cmd2/blob/master/examples/example.py) | ||
| - This example is intended to demonstrate `cmd2's` build-in transcript testing capability | ||
| - [exit_code.py](https://github.com/python-cmd2/cmd2/blob/master/examples/exit_code.py) | ||
| - Show how to emit a non-zero exit code from your `cmd2` application when it exits | ||
| - [first_app.py](https://github.com/python-cmd2/cmd2/blob/master/examples/first_app.py) | ||
| - Short application that demonstrates 8 key features: Settings, Commands, Argument Parsing, Generating Output, Help, Shortcuts, Multiple Commands, and History | ||
| - [hello_cmd2.py](https://github.com/python-cmd2/cmd2/blob/master/examples/hello_cmd2.py) | ||
| - Completely bare-bones `cmd2` application suitable for rapid testing and debugging of `cmd2` itself | ||
| - [help_categories.py](https://github.com/python-cmd2/cmd2/blob/master/examples/help_categories.py) | ||
| - Demonstrates command categorization and its impact on the output of the built-in `help` command | ||
| - [hooks.py](https://github.com/python-cmd2/cmd2/blob/master/examples/hooks.py) | ||
| - Shows how to use various `cmd2` application lifecycle hooks | ||
| - [initialization.py](https://github.com/python-cmd2/cmd2/blob/master/examples/initialization.py) | ||
| - Shows how to colorize output, use multiline command, add persistent history, and more | ||
| - [migrating.py](https://github.com/python-cmd2/cmd2/blob/master/examples/migrating.py) | ||
| - A simple `cmd` application that you can migrate to `cmd2` by changing one line | ||
| - [modular_commands_basic.py](https://github.com/python-cmd2/cmd2/blob/master/examples/modular_commands_basic.py) | ||
| - Demonstrates based `CommandSet` usage | ||
| - [modular_commands_dynamic.py](https://github.com/python-cmd2/cmd2/blob/master/examples/modular_commands_dynamic.py) | ||
| - Demonstrates dynamic `CommandSet` loading and unloading | ||
| - [modular_commands_main.py](https://github.com/python-cmd2/cmd2/blob/master/examples/modular_commands_main.py) | ||
| - Complex example demonstrating a variety of methods to load `CommandSets` using a mix of command decorators | ||
| - [modular_subcommands.py](https://github.com/python-cmd2/cmd2/blob/master/examples/modular_subcommands.py) | ||
| - Shows how to use dynamically add and remove subcommands at runtime using `CommandSets` | ||
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| - [override-parser.py](https://github.com/python-cmd2/cmd2/blob/master/examples/override_parser.py) | ||
| - Shows how to override cmd2's default `Cmd2ArgumentParser` with your own customer parser class | ||
| - [paged_output.py](https://github.com/python-cmd2/cmd2/blob/master/examples/paged_output.py) | ||
| - Shows how to use output pagination within `cmd2` apps via the `ppaged` method | ||
| - [persistent_history.py](https://github.com/python-cmd2/cmd2/blob/master/examples/persistent_history.py) | ||
| - Shows how to enable persistent history in your `cmd2` application | ||
| - [pirate.py](https://github.com/python-cmd2/cmd2/blob/master/examples/pirate.py) | ||
| - Demonstrates many features including colorized output, multiline commands, shorcuts, defaulting to shell, etc. | ||
| - [python_scripting.py](https://github.com/python-cmd2/cmd2/blob/master/examples/python_scripting.py) | ||
| - Shows how cmd2's built-in `run_pyscript` command and provide advanced Python scripting of cmd2 applications | ||
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| - [read_input.py](https://github.com/python-cmd2/cmd2/blob/master/examples/read_input.py) | ||
| - Demonstrates the various ways to call `cmd2.Cmd.read_input()` for input history and tab completion | ||
| - [remove_builtin_commands.py](https://github.com/python-cmd2/cmd2/blob/master/examples/remove_builtin_commands.py) | ||
| - Shows how to remove any built-in cmd2 commands you do not want to be present in your cmd2 application | ||
| - [remove_settable.py](https://github.com/python-cmd2/cmd2/blob/master/examples/remove_settable.py) | ||
| - Shows how to remove any of the built-in cmd2 `Settables` you do not want in your cmd2 application | ||
| - [subcommands.py](https://github.com/python-cmd2/cmd2/blob/master/examples/subcommands.py) | ||
| - Shows how to use `argparse` to easily support sub-commands within your cmd2 commands | ||
| - [table_creation.py](https://github.com/python-cmd2/cmd2/blob/master/examples/table_creation.py) | ||
| - Contains various examples of using cmd2's table creation capabilities | ||
| - [tmux_launch.sh](https://github.com/python-cmd2/cmd2/blob/master/examples/tmux_launch.sh) | ||
| - Shell script that launches two applications using tmux in different windows/tabs | ||
| - [tmux_split.sh](https://github.com/python-cmd2/cmd2/blob/master/examples/tmux_split.sh) | ||
| - Shell script that launches two applications using tmux in a split pane view | ||
| - [unicode_commands.py](https://github.com/python-cmd2/cmd2/blob/master/examples/unicode_commands.py) | ||
| - Shows that cmd2 supports unicode everywhere, including within command names | ||
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| #!/usr/bin/env zsh | ||
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| # This script launches two applications using tmux in different windows/tabs. | ||
| # The user is required to enter the name of at least the first application. | ||
| # If the second isn't provided, then the user's default shell is launched for this. | ||
| # You must have tmux installed and that can be done using your operating system's package manager. | ||
| # | ||
| # See the tmux Wiki for info on how to use it: https://github.com/tmux/tmux/wiki. | ||
| # To shift focus between different windows in tmux use Ctrl-b followed by l (lowercase "L"). | ||
| # | ||
| # NOTE: IF you have byobu installed, it is a wrapper around tmux and will likely run instead of tmux. | ||
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| # For info on how to use Byobu, see: https://www.byobu.org/ | ||
| # To shift focus between windows/tabs in byobu, simply hit F3. | ||
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| # Function to print in red | ||
| print_red() { | ||
| echo -e "\e[31m$*\e[0m" | ||
| } | ||
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| if [ $# -eq 0 ]; | ||
| then | ||
| print_red "No arguments supplied and this script requires at least one" | ||
| exit 1 | ||
| fi | ||
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| FIRST_COMMAND=$1 | ||
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| if [ $# -eq 1 ] | ||
| then | ||
| SECOND_COMMAND=$SHELL | ||
| else | ||
| SECOND_COMMAND=$2 | ||
| fi | ||
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| tmux new-session -s "tmux window demo" -n "$FIRST_COMMAND" "$FIRST_COMMAND ;read" \; \ | ||
| new-window -n "$SECOND_COMMAND" "$SECOND_COMMAND ; read" \; previous-window | ||
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| Original file line number | Diff line number | Diff line change |
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| #!/usr/bin/env zsh | ||
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| # This script launches two applications using byobu in different tabs. | ||
| # The user is required to enter the name of at least the first application. | ||
| # If the second isn't provided, then the user's default shell is launched for this. | ||
| # | ||
| # byobu must be installed for this script to work and you can install it using your | ||
| # operating system package manager. or info on how to use Byobu, see: https://www.byobu.org/ | ||
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| # | ||
| # To shift focus between tabs in byobu, just hit F3. | ||
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| # Function to print in red | ||
| print_red() { | ||
| echo -e "\e[31m$*\e[0m" | ||
| } | ||
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| if [ $# -eq 0 ]; | ||
| then | ||
| print_red "No arguments supplied and this script requires at least one" | ||
| exit 1 | ||
| fi | ||
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| FIRST_COMMAND=$1 | ||
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| if [ $# -eq 1 ] | ||
| then | ||
| SECOND_COMMAND=$SHELL | ||
| else | ||
| SECOND_COMMAND=$2 | ||
| fi | ||
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| tmux new-session -s "tmux split pane demo" "$FIRST_COMMAND ; read" \; \ | ||
| split-window "$SECOND_COMMAND ; read" \; \ | ||
| select-layout even-vertical | ||
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All whitespace changes like this are due to prettier auto-formatting of Markdown and YAML files accoridng to the configuration in the .prettierrc configuration file in the
cmd2project root directory.There is a
Prettierextension for VSCode and aPrettierplugin for PyCharm - both make it easy to auto-format on save.In the future we may want to look into a GitHub Actions workflow to check the auto-formatting of all Markdown and YAML files using Prettier, but I think that might be overkill at this time.