Путь: Toys/Other, команды версии: Ver.4     Ver.9

usage:   usleep MICROSECONDS

    Пауза на MICROSECONDS микросекунд.

usage:  usleep MICROSECONDS
    Pause for MICROSECONDS microseconds.

#include "toys.h"

void usleep_main(void)
{
  struct timespec tv;
  long delay = atol(*toys.optargs);

  tv.tv_sec = delay/1000000;
  tv.tv_nsec = (delay%1000000) * 1000;
  toys.exitval = !!nanosleep(&tv, NULL);
}