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getpgrp (3)
  • getpgrp (2) ( Solaris man: Системные вызовы )
  • getpgrp (2) ( FreeBSD man: Системные вызовы )
  • getpgrp (2) ( Русские man: Системные вызовы )
  • getpgrp (2) ( Linux man: Системные вызовы )
  • >> getpgrp (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    getpgrp - get the process group ID of the calling process
     
    

    SYNOPSIS

    #include <unistd.h>

    pid_t getpgrp(void);
     

    DESCRIPTION

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

    RETURN VALUE

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

    ERRORS

    No errors are defined.

    The following sections are informative.  

    EXAMPLES

    None.  

    APPLICATION USAGE

    None.  

    RATIONALE

    4.3 BSD provides a getpgrp() 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 V getpgrp() suffices, and the added complexity of the 4.3 BSD getpgrp() is provided by the XSI extension getpgid().  

    FUTURE DIRECTIONS

    None.  

    SEE ALSO

    exec() , fork() , getpgid() , getpid() , getppid() , kill() , setpgid() , setsid() , the Base Definitions volume of IEEE Std 1003.1-2001, <sys/types.h>, <unistd.h>  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 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 at http://www.opengroup.org/unix/online.html .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    EXAMPLES
    APPLICATION USAGE
    RATIONALE
    FUTURE DIRECTIONS
    SEE ALSO
    COPYRIGHT


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