|Linux / Unix Command: alarm|
NAMEalarm - set an alarm clock for delivery of a signal
#include <unistd.h> unsigned int alarm(unsigned int seconds);
DESCRIPTIONalarm arranges for a SIGALRM signal to be delivered to the process in seconds seconds.
If seconds is zero, no new alarm is scheduled.
RETURN VALUEalarm returns the number of seconds remaining until any previously scheduled alarm was due to be delivered, or zero if there was no previously scheduled alarm.
SEE ALSOsetitimer(2), signal(2), sigaction(2), gettimeofday(2), select(2), pause(2), sleep(3)
Important: Use the man command (% man) to see how a command is used on your particular computer.