Go cheatsheet - Flag
Flag
package main
import (
"flag"
"fmt"
)
func main() {
count := flag.Int("count", 0, "run time count")
prefix := flag.String("prefix", "", "install path")
dryrun := flag.Bool("dryrun", true, "dry run program")
flag.Parse()
fmt.Println("Count", *count)
fmt.Println("Prefix", *prefix)
fmt.Println("Dryrun", *dryrun)
}
Pass to command line:
$ ./main --count=2 --prefix=/path/to/folder --dryrun=false
$ ./main -count=2 -prefix=/path/to/folder -dryrun=false
$ ./main -count 2 -prefix /path/to/folder -dryrun false
Also the -h
and --help
is auto generated
$ ./main -h
$ ./main --help