переменные синтаксического анализа параметров (options parsing variables)
Пролог (Prolog)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
Имя (Name)
optarg, opterr, optind, optopt — options parsing variables
Синопсис (Synopsis)
#include <unistd.h>
extern char *optarg;
extern int opterr, optind, optopt;
Описание (Description)
Refer to getopt(3p).