setpgid(2) [hpux man page]

setpgid(2)							System Calls Manual							setpgid(2)

NAME

       setpgid(), setpgrp2() - set process group ID for job control

SYNOPSIS

DESCRIPTION

       The  and system calls cause the process specified by pid to join an existing process group or create a new process group within the session
       of the calling process.	The process group ID of the process whose process ID is pid is set to pgid.  If pid is zero, the process ID of the
       calling	process is used.  If pgid is zero, the process ID of the indicated process is used.  The process group ID of a session leader does
       not change.

       is provided for backward compatibility only.

   Security Restrictions
       Some or all of the actions associated with this system call are subject to compartmental restrictions.

       See compartments(5) for more information about compartmentalization on systems that support that feature.  Compartmental  restrictions  can
       be  overridden  if  the process possesses the privilege (COMMALLOWED).  Processes owned by the superuser may not have this privilege.  Pro-
       cesses owned by any user may have this privilege, depending on system configuration.

       See privileges(5) for more information about privileged access on systems that support fine-grained privileges.

RETURN VALUE

       and return the following values:

	      Successful completion.
	      Failure.
		     is set to indicate the error.

ERRORS

       If or fails, is set to one of the following values.

	      The value of   pid matches the process ID of a child process of the calling process and the child process has successfully  executed
			     one of the exec(2) functions.

	      The value of   pgid is less than zero or is outside the range of valid process group ID values.

	      The process indicated by
			     pid is a session leader.

	      The value of   pid  is  valid  but matches the process ID of a child process of the calling process, and the child process is not in
			     the same session as the calling process.

	      The value of   pgid does not match the process ID of the process indicated by pid and there is no process with a	process  group	ID
			     that matches the value of pgid in the same session as the calling process.

	      The value of   pid does not match the process ID of the calling process or of a child process of the calling process.

AUTHOR

       and were developed by HP and the University of California, Berkeley.

SEE ALSO

       bsdproc(3C), exec(2), exit(2), fork(2), getpid(2), kill(2), setsid(2), signal(2), privileges(5), termio(7).

STANDARDS CONFORMANCE

																	setpgid(2)

Check Out this Related Man Page

setpgid(3)						     Library Functions Manual							setpgid(3)

Name
       setpgid - set process group (POSIX)

Syntax
       #include <sys/types.h>
       int
       setpgid(pid, pgrp)
       pid_t pid, pgrp;

Description
       The  function is used to either join an existing process group or create a new process group within the session of the calling process (see
       Upon successful completion, the process group ID of the process that has a process ID which matches pid is set to pgrp.	If  pid  is  zero,
       then the call applies to the current process. In addition, if pgrp is zero, the process ID of the indicated process is used.

       This function is available only in the POSIX environment.

Return Values
       The  function  returns 0 when the operation is successful.  If the request fails, -1 is returned and the global variable indicates the rea-
       son.

Diagnostics
       The function fails and the process group is not altered if one of the following occurs:

       [EACCES]       The value of the pid argument matches the process ID of a child process of the calling process and  the  child  process  has
		      successfully executed an function.

       [EINVAL]       The value of the pgrp argument is less than zero or is not a supported value.

       [EPERM]	      The process indicated by the pid argument is a session leader.

		      The  value of the pid argument matches the process ID of a child process of the calling process and the child process is not
		      in the same session as the calling process.

		      The value of the pgrp argument does not match the process ID of the process indicated by the pid argument and  there  is	no
		      process with a process group ID that matches the value of the pgrp argument in the same session as the calling process.

       [ESRCH]	      The  value  of  the  pid	argument  does	not  match the process ID of the calling process of a child process of the calling
		      process.

See Also
       getpgrp(2), setsid(2)

																	setpgid(3)

Linux and UNIX Man Pages

setpgid(2) [hpux man page]

Check Out this Related Man Page