| .\" Hey Emacs! This file is -*- nroff -*- source. |
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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) |