./dumpuptime.pl uptime: 21 days, 8:02 Use of uninitialized value in printf at ./dumpuptime.pl line 14. users: load(1): 1 load(5): 0.04 load(15): 0.03 string: 20:39pm up 21 days, 8:02, 1 users, load average: 0.04, 0.03, 0.04