/* @(#)sleep.c 1.2 */
/*
** sleep -- suspend execution for an interval
**
** sleep time
*/
#include <stdio.h>
main(argc, argv)
char **argv;
{
int c, n;
char *s;
n = 0;
if(argc < 2) {
fprintf(stderr, "usage: sleep time\n");
exit(2);
}
s = argv[1];
while(c = *s++) {
if(c<'0' || c>'9') {
fprintf(stderr, "sleep: bad character in argument\n");
exit(2);
}
n = n*10 + c - '0';
}
sleep(n);
}