usr/man/man2/pause.2

.TH PAUSE 2
.SH NAME
pause \- stop until signal
.SH SYNOPSIS
.B pause( )
.SH DESCRIPTION
.I Pause
never returns normally.
It is used to give up control while waiting for
a signal from
.IR kill (2)
or
.IR alarm (2).
.SH SEE ALSO
kill(1), kill(2), alarm(2), signal(2), setjmp(3)
.SH "ASSEMBLER (PDP-11)"
(pause = 29.)
.br
.B sys pause