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CentOS 7.0 - man page for pause (centos section 2)

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

NAME
pause - wait for signal
SYNOPSIS
#include <unistd.h> int pause(void);
DESCRIPTION
pause() causes the calling process (or thread) to sleep until a signal is delivered that either terminates the process or causes the invo- cation of a signal-catching function.
RETURN VALUE
pause() returns only 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, 4.3BSD, POSIX.1-2001.
SEE ALSO
kill(2), select(2), signal(2), sigsuspend(2)
COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. Linux 2008-10-06 PAUSE(2)