urfave-cli/docs/v2/examples/subcommands-categories.md

tags	search
v2	boost 2

For additional organization in apps that have many subcommands, you can associate a category for each command to group them together in the help output, e.g.:

package main

import (
	"log"
	"os"

	"github.com/urfave/cli/v2"
)

func main() {
	app := &cli.App{
		Commands: []*cli.Command{
			{
				Name: "noop",
			},
			{
				Name:     "add",
				Category: "template",
			},
			{
				Name:     "remove",
				Category: "template",
			},
		},
	}

	if err := app.Run(os.Args); err != nil {
		log.Fatal(err)
	}
}

Will include:

COMMANDS:
  noop

  Template actions:
    add
    remove