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GETPID(2)		      System Calls Manual		     GETPID(2)

NAME
       getpid, getppid -- get parent or	calling	process	identification

LIBRARY
       Standard	C Library (libc, -lc)

SYNOPSIS
       #include	<unistd.h>

       pid_t
       getpid(void);

       pid_t
       getppid(void);

DESCRIPTION
       The getpid() system call	returns	the process ID of the calling process.
       Though  the  ID	is  guaranteed to be unique, it	should NOT be used for
       constructing temporary file names, for security reasons;	see mkstemp(3)
       instead.

       The getppid() system call returns the process ID	of the parent  of  the
       calling process.

ERRORS
       The  getpid()  and getppid() system calls are always successful,	and no
       return value is reserved	to indicate an error.

SEE ALSO
       fork(2),	getpgrp(2), kill(2), setpgid(2), setsid(2), exec(3)

STANDARDS
       The getpid() and	getppid() system calls	are  expected  to  conform  to
       ISO/IEC 9945-1:1990 ("POSIX.1").

HISTORY
       The getpid() function appeared in Version 7 AT&T	UNIX.

FreeBSD	13.2		       December	15, 2015		     GETPID(2)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | ERRORS | SEE ALSO | STANDARDS | HISTORY

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