kernel/system up time
 

Is there a library function that tells me how long the system or the kernel has been up.

Thanks
IFti

"uptime" will give you the info. If you want the text file, it's /proc/uptime.

Thanks. Isn't there any C callabel function?

dunno, but isn't it possible to just read /proc/uptime as text with the functions from stdio.h?

That's a good idea. Thanks.
When I did cat /proc/uptime it gave me
97983.95 85870.88

How to read from it. What are these 2 values and are they in seconds?

from "man proc"...
"""uptime This file contains two numbers: the uptime of the system (seconds), and the amount of time spent in idle process (seconds)."""

Great thanks for all the help

iftiuk,
You can also download gkrellm as it has a running counter of machine uptime towards the bottom.
J

Thanks for letting me know