signal between parent process and child process Post: 302563114

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LEARN ABOUT LINUX

setpgrp

SETPGRP(P)						     POSIX Programmer's Manual							SETPGRP(P)

NAME

       setpgrp - set the process group ID

SYNOPSIS

       #include <unistd.h>

       pid_t setpgrp(void);

DESCRIPTION

       If the calling process is not already a session leader, setpgrp() sets the process group ID of the calling process to the process ID of the
       calling process. If setpgrp() creates a new session, then the new session has no controlling terminal.

       The setpgrp() function has no effect when the calling process is a session leader.

RETURN VALUE

       Upon completion, setpgrp() shall return the process group ID.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

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

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- 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 .

IEEE
/The Open Group						       2003								SETPGRP(P)

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