$ 03_04_subcommands help A simple to use, efficient, and full-featured Command Line Argument Parser Usage: 03_04_subcommands[EXE] <COMMAND> Commands: add Adds files to myapp help Print this message or the help of the given subcommand(s) Options: -h, --help Print help -V, --version Print version $ 03_04_subcommands help add Adds files to myapp Usage: 03_04_subcommands[EXE] add [NAME] Arguments: [NAME] Options: -h, --help Print help -V, --version Print version $ 03_04_subcommands add bob 'myapp add' was used, name is: Some("bob")
Because we set [Command::arg_required_else_help
][crate::Command::arg_required_else_help]:
$ 03_04_subcommands ? failed A simple to use, efficient, and full-featured Command Line Argument Parser Usage: 03_04_subcommands[EXE] <COMMAND> Commands: add Adds files to myapp help Print this message or the help of the given subcommand(s) Options: -h, --help Print help -V, --version Print version
Since we specified [Command::propagate_version
][crate::Command::propagate_version], the --version
flag is available in all subcommands:
$ 03_04_subcommands --version clap [..] $ 03_04_subcommands add --version clap-add [..]