1OPTARG(3P)                 POSIX Programmer's Manual                OPTARG(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

12       optarg, opterr, optind, optopt — options parsing variables
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SYNOPSIS

15       #include <unistd.h>
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17       extern char *optarg;
18       extern int opterr, optind, optopt;
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DESCRIPTION

21       Refer to getopt().
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24       Portions of this text are reprinted and reproduced in  electronic  form
25       from  IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
26       table Operating System Interface (POSIX), The Open Group Base  Specifi‐
27       cations  Issue  7, 2018 Edition, Copyright (C) 2018 by the Institute of
28       Electrical and Electronics Engineers, Inc and The Open Group.   In  the
29       event of any discrepancy between this version and the original IEEE and
30       The Open Group Standard, the original IEEE and The Open Group  Standard
31       is  the  referee document. The original Standard can be obtained online
32       at http://www.opengroup.org/unix/online.html .
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34       Any typographical or formatting errors that appear  in  this  page  are
35       most likely to have been introduced during the conversion of the source
36       files to man page format. To report such errors,  see  https://www.ker‐
37       nel.org/doc/man-pages/reporting_bugs.html .
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41IEEE/The Open Group                  2017                           OPTARG(3P)
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