func GetLoginRecentPath(workDirectory string, userID string) (string, error) {
	return fmt.Sprintf("%s/home/%c/%s/logins.recent", workDirectory, userID[0], userID), nil
}
Get Login Recent file path of user
package pttbbs
import (
	"fmt"
	"strings"
)
func GetPasswdsPath(workDirectory string) (string, error) {
	return fmt.Sprintf("%s/.PASSWDS", workDirectory), nil
}
func GetBoardPath(workDirectory string) (string, error) {
	return fmt.Sprintf("%s/.BRD", workDirectory), nil
}
func GetUserFavoritePath(workDirectory string, userID string) (string, error) {
	return fmt.Sprintf("%s/home/%c/%s/.fav", workDirectory, userID[0], userID), nil
}
func GetUserDraftPath(workDirectory string, userID string, draftID string) (string, error) {
	return fmt.Sprintf("%s/home/%c/%s/buf.%s", workDirectory, userID[0], userID, draftID), nil
}
func GetUserMailPath(workDirectory string, userID string, filename string) (string, error) {
	return fmt.Sprintf("%s/home/%c/%s/%s", workDirectory, userID[0], userID, filename), nil
}