Command::arg_required_else_help

arg_required_else_help

since 0.1.0

Exit gracefully if no arguments are present (e.g. $ myprog).

Example

Spec

TOML

name = "myprog"
arg-required-else-help = true

YAML

name: myprog
arg-required-else-help: true

JSON

{
  "name": "myprog",
  "arg-required-else-help": true
}

Input

myprog

Output

Usage: myprog

Options:
  -h, --help  Print help