BSD 4 release

[unix-history] / usr / src / cmd / sleep.c

static char *sccsid = "@(#)sleep.c      4.1 (Berkeley) 10/1/80";
main(argc, argv)
char **argv;
{
       int c, n;
       char *s;

       n = 0;
       if(argc < 2) {
               printf("arg count\n");
               exit(0);
       }
       s = argv[1];
       while(c = *s++) {
               if(c<'0' || c>'9') {
                       printf("bad character\n");
                       exit(0);
               }
               n = n*10 + c - '0';
       }
       sleep(n);
}