I need the EXACT same output as Linux's "cat /proc/uptime".
For example, with /proc/uptime, you'd get
1884371.64 38646169.12
but with any Mac alternative, like "uptime", you'd get
20:25 up 20:26, 6 users, load averages: 3.19 2.82 2.76
I need it to be exactly like cat /proc/uptime, but on Mac OS X.
Got it...
$sysctl -n kern.boottime | cut -c14-18
87988
Then I just converted that to readable format (don't remember how):
1 Days 00:26:28
There simply is no "/proc" directory on the Macintosh.
On MacOS, you can do a command like:
sysctl kern.boottime
and you'll get a response like:
kern.boottime: { sec = 1362633455, usec = 0 } Wed Mar 6 21:17:35 2013
boottime=`sysctl -n kern.boottime | awk '{print $4}' | sed 's/,//g'`
unixtime=`date +%s`
timeAgo=$(($unixtime - $boottime))
uptime=`awk -v time=$timeAgo 'BEGIN { seconds = time % 60; minutes = int(time / 60 % 60); hours = int(time / 60 / 60 % 24); days = int(time / 60 / 60 / 24); printf("%.0f days, %.0f hours, %.0f minutes, %.0f seconds", days, hours, minutes, seconds); exit }'`
echo $uptime
Will return something like 1 Day, 20 hours, 10 minutes, 55 seconds
