How to get a unix script to run every 15 seconds?

Question

I\'ve seen a few solutions, including watch and simply running a looping (and sleeping) script in the background, but nothing has been ideal.

I have a script that ne

Answer 1

Use nanosleep(2). It uses structure timespec that is used to specify intervals of time with nanosecond precision.

struct timespec {
           time_t tv_sec;        /* seconds */
           long   tv_nsec;       /* nanoseconds */
       };