VMS Help CC, Run-time functions, execlp  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Passes the name of an image to be activated on a child process.
  This function is nonreentrant.

  Syntax:

       #include <unistd.h>

       int execlp (const char *file-spec, const char *arg0,...,(char
       *)0); (POSIX-1)

       int execlp (char *file-spec,...); (Compatibility)