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GETPID(2)		  FreeBSD 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 con-
     structing 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	11.1		       December	15, 2015		  FreeBSD 11.1
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | ERRORS | SEE ALSO | STANDARDS | HISTORY

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