NAME    [Toc]    [Back]

     getpid, getppid - get parent or calling process identification

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <unistd.h>

     pid_t
     getpid(void);

     pid_t
     getppid(void);

DESCRIPTION    [Toc]    [Back]

     getpid() returns the process ID of the calling process.  The ID is guaranteed
 to be unique and is useful for constructing temporary file names.

     getppid() returns the process ID of the parent of the calling process.

ERRORS    [Toc]    [Back]

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

SEE ALSO    [Toc]    [Back]

     gethostid(3)

STANDARDS    [Toc]    [Back]

     getpid() and getppid() conform to ISO/IEC 9945-1:1990 (``POSIX.1'').

BSD                              June 4, 1993                              BSD