#include "internal.h" #include const char sleep_usage[] = " NUMBER\n" "Pause for NUMBER seconds.\n"; extern int sleep_main(int argc, char * * argv) { if ( (argc < 2) || (**(argv+1) == '-') ) { fprintf(stderr, "Usage: %s %s", *argv, sleep_usage); exit(FALSE); } if ( sleep(atoi(*(++argv))) != 0 ) { perror( "sleep"); exit (FALSE); } else exit (TRUE); }