Public domain
awk '{
sec = int($1)
day = int(sec/3600/24)
sec -= day*24*3600
hour = int(sec/3600)
sec -= hour*3600
min = int(sec/60)
print day"d "hour"h "min"m"
}' /proc/uptime
BY: Pejman Moghadam
TAG: awk, uptime
DATE: 2011-12-09 11:30:39