package flag
Parse parses the command-line flags from os.Args[1:]. Must be called after all flags are defined and before flags are accessed by the program.
Golang flag.Parse() function usage examples
Example 1:
func main() {
community := flag.String("community", "public", "community program")
host := flag.String("host", "127.0.0.1", "host")
flag.Parse()
...
Example 2:
func main() {
flag.Parse()
if flag.NArg() != 1 {
log.Fatal("filename not specified")
}
filename = flag.Args()[0]
....
Reference :
http://golang.org/pkg/flag/#Parse
