Questions tagged [uptime]
83 questions
18
votes
4 answers
How to reliably get timestamp at which the system booted?
I'm aware of the uptime command, but it returns seconds since booted, so if I just substract that number from current timestamp, in theory I can get a different result if second changes after I've read the uptime and current timestamp. uptime -s is…

Fluffy
- 2,077
5
votes
1 answer
How is the "users" field of `uptime` calculated?
For me, uptime yields 9 users, but
ps -Af | cut -f1 -d' ' | sort | uniq | wc -l yields 14.
I'm not exactly sure where the 9 is coming from.
Before I jump to conclusions though, please let me know if you guys do not have such a discrepancy.

extremeaxe5
- 1,183
2
votes
1 answer
How is uptime calculated?
I was wondering how uptime is calculated.
Is it simply the difference between now and boot time? More specifically-- If I were to boot up, run for 5 minutes, and put the machine to sleep for a year; Upon resuming, would my uptime show 5 minutes, or…

sam
- 22,765
0
votes
1 answer
no1 record in uptimed report
I have recently installed uptimed to track history of when my electricity was off. Everything is clear but there's one thing I cannot decipher.
What does the label "no1" stand for in the following report? It points to a future date (it's March 7,…

dzieciou
- 101