PAUSE

pause ? wait for signal

#include <unistd.h>

int pause(void);

The pause system call causes the invoking process to sleep until a signal is received.

pause always returns ?1, and errno is set to ERESTARTNOHAND.

EINTR

signal was received.

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

kill(2), select(2), signal(2)