Mirrors/clap
2
0
Fork 0
mirror of https://github.com/clap-rs/clap synced 2024-12-14 14:52:33 +00:00
Code Issues Projects Releases Packages Wiki Activity
clap/examples/tutorial_builder/04_02_parse.md
Ed Page 65b5b5f7bf fix(help): Remove name/version/author from help 
This is to help shorten it and polish it by removing redundant
information.

This is a part of #4132
2022-08-31 15:06:15 -05:00

588 B
Raw Blame History 

$ 04_02_parse --help
A simple to use, efficient, and full-featured Command Line Argument Parser

Usage:
    04_02_parse[EXE] <PORT>

Arguments:
    <PORT>    Network port to use

Options:
    -h, --help       Print help information
    -V, --version    Print version information

$ 04_02_parse 22
PORT = 22

$ 04_02_parse foobar
? failed
error: Invalid value "foobar" for '<PORT>': invalid digit found in string

For more information try --help

$ 04_02_parse_derive 0
? failed
error: Invalid value "0" for '<PORT>': 0 is not in 1..=65535

For more information try --help