redhat man page for pause

PAUSE(2)						     Linux Programmer's Manual							  PAUSE(2)

NAME
       pause - wait for signal

SYNOPSIS
       #include <unistd.h>

       int pause(void);

DESCRIPTION
       The  pause library function causes the invoking process (or thread) to sleep until a signal is received that either terminates it or causes
       it to call a signal-catching function.

RETURN VALUE
       The pause function only returns when a signal was caught and the signal-catching function returned. In this  case  pause  returns  -1,  and
       errno is set to EINTR.

ERRORS
       EINTR  a signal was caught and the signal-catching function returned.

CONFORMING TO
       SVr4, SVID, POSIX, X/OPEN, BSD 4.3

SEE ALSO
       kill(2), select(2), signal(2)

Linux								    1995-08-31								  PAUSE(2)