env

command
v0.0.0-...-4bc4959 Latest Latest
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Published: Jun 30, 2016 License: MIT, MIT Imports: 2 Imported by: 0

README

env example

<tmpl,code=go:cat env.go>

package main

import (
	"fmt"

	"github.com/jpillora/opts"
)

type Config struct {
	Foo string
	Bar string
}

func main() {
	c := Config{}
	//In this case UseEnv() is equivalent to
	//adding `env:"FOO"` and `env:"BAR"` tags
	opts.New(&c).UseEnv().Parse()
	fmt.Println(c.Foo)
	fmt.Println(c.Bar)
}
``` $ export FOO=hello $ export BAR=world $ go run env.go ``` ``` plain hello world ``` ``` $ env --help ``` ``` plain

Usage: env [options]

Options: --foo, -f env FOO --bar, -b env BAR --help, -h

</tmpl>

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