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#
hostname/
multicall-hostname.rs

    1use clap::Command;
    2
    3fn main() {
    4    let cmd = Command::new(env!("CARGO_CRATE_NAME"))
    5        .multicall(true)
    6        .arg_required_else_help(true)
    7        .subcommand_value_name("APPLET")
    8        .subcommand_help_heading("APPLETS")
    9        .subcommand(Command::new("hostname").about("show hostname part of FQDN"))
    10        .subcommand(Command::new("dnsdomainname").about("show domain name part of FQDN"));
    11
    12    match cmd.get_matches().subcommand_name() {
    13        Some("hostname") => println!("www"),
    14        Some("dnsdomainname") => println!("example.com"),
    15        _ => unreachable!("parser should ensure only valid subcommand names are used"),
    16    }
    17}