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getpgrp(3p) — Linux manual page

GETPGRP(3P)             POSIX Programmer's ManualGETPGRP(3P)

PROLOG        top

       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.

NAME        top

       getpgrp — get the process group ID of the calling process

SYNOPSIS        top

       #include <unistd.h>       pid_t getpgrp(void);

DESCRIPTION        top

       Thegetpgrp() function shall return the process group ID of the       calling process.

RETURN VALUE        top

       Thegetpgrp() function shall always be successful and no return       value is reserved to indicate an error.

ERRORS        top

       No errors are defined.The following sections are informative.

EXAMPLES        top

       None.

APPLICATION USAGE        top

       None.

RATIONALE        top

       4.3 BSD provides agetpgrp() function that returns the process       group ID for a specified process. Although this function supports       job control, all known job control shells always specify the       calling process with this function. Thus, the simpler System Vgetpgrp() suffices, and the added complexity of the 4.3 BSDgetpgrp() is provided by the XSI extensiongetpgid().

FUTURE DIRECTIONS        top

       None.

SEE ALSO        top

exec(1p),fork(3p),getpgid(3p),getpid(3p),getppid(3p),kill(3p),setpgid(3p),setsid(3p)       The Base Definitions volume of POSIX.1‐2017,sys_types.h(0p),unistd.h(0p)

COPYRIGHT        top

       Portions of this text are reprinted and reproduced in electronic       form from IEEE Std 1003.1-2017, Standard for Information       Technology -- Portable Operating System Interface (POSIX), The       Open Group Base Specifications Issue 7, 2018 Edition, Copyright       (C) 2018 by the Institute of Electrical and Electronics Engineers,       Inc and The Open Group.  In the event of any discrepancy between       this version and the original IEEE and The Open Group Standard,       the original IEEE and The Open Group Standard is the referee       document. The original Standard can be obtained online athttp://www.opengroup.org/unix/online.html .       Any typographical or formatting errors that appear in this page       are most likely to have been introduced during the conversion of       the source files to man page format. To report such errors, seehttps://www.kernel.org/doc/man-pages/reporting_bugs.html .IEEE/The Open Group                2017GETPGRP(3P)

Pages that refer to this page:unistd.h(0p), getpgid(3p), getpid(3p), getppid(3p), setpgid(3p)

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