31 int main(int argc, char **argv)  in main()  argument
40     printf("Usage: %s [-f logfile] [-a] [-d delay] <program>\n", argv[0]);  in main()
48   while(**++argv == '-') {  in main()
49     while(*++*argv) {  in main()
50       switch(**argv) {  in main()
52           if(*++*argv)  in main()
53             file = *argv;  in main()
55             file = *++argv;  in main()
58           if(*++*argv)  in main()
59             delay = atoi(*argv);  in main()
61             delay = atoi(*++argv);  in main()
86       perror(argv[0]);  in main()
111           execv(argv[0], argv);  in main()
112           execvp(argv[0], argv);  in main()
113           perror(argv[0]);  in main()