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.\" Copyright 1993 Rickard E. Faith (faith@cs.unc.edu)
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.TH GETPID 2 1993-07-23 "Linux" "Linux Programmer's Manual"
.SH NAME
getpid, getppid \- get process identification
.SH SYNOPSIS
.B #include <sys/types.h>
.br
.B #include <unistd.h>
.sp
.B pid_t getpid(void);
.br
.B pid_t getppid(void);
.SH DESCRIPTION
.BR getpid ()
returns the process ID of the calling process.
(This is often used by
routines that generate unique temporary filenames.)

.BR getppid ()
returns the process ID of the parent of the calling process.
.SH ERRORS
These functions are always successful.
.SH "CONFORMING TO"
POSIX.1-2001, 4.3BSD, SVr4.
.SH "SEE ALSO"
.BR fork (2),
.BR kill (2),
.BR exec (3),
.BR mkstemp (3),
.BR tempnam (3),
.BR tmpfile (3),
.BR tmpnam (3),
.BR credentials (7)