User:Kim/Special Issue 27/Timekeeping device: Difference between revisions

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==cereal time==
==cereal time==
===general time data===
  $ timedatectl
  $ timedatectl
outputs
outputs
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  RTC in local TZ: no
  RTC in local TZ: no
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
===run processes===
  $ ps (or $ ps aux)
  $ ps (or $ ps aux)
outputs information on run processes (aux is more specific, shows user associated with each process, the start time, the memory consumption, the total running time, command associated with each process)
outputs information on run processes (aux is more specific, shows user associated with each process, the start time, the memory consumption, the total running time, command associated with each process)
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
===last reboot===
  $ last reboot
  $ last reboot
outputs
outputs
  reboot  system boot  6.6.47+rpt-rpi-v Tue May  6 09:24  still running
  reboot  system boot  6.6.47+rpt-rpi-v Tue May  6 09:24  still running
  wtmp begins Wed Apr 23 09:46:29 2025
  wtmp begins Wed Apr 23 09:46:29 2025

Revision as of 20:35, 19 May 2025

tests

can be found on cerealbox timekeeping-device/

terminal

ping
to graph (graphic) visualizing length of seconds
traceroute
time (cmd)

ideas

references

cereal time

general time data

$ timedatectl

outputs

Local time: Mon 2025-05-19 19:13:43 BST
Universal time: Mon 2025-05-19 18:13:43 UTC
RTC time: n/a
Time zone: Europe/London (BST, +0100)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no

run processes

$ ps (or $ ps aux)

outputs information on run processes (aux is more specific, shows user associated with each process, the start time, the memory consumption, the total running time, command associated with each process)


last reboot

$ last reboot

outputs

reboot   system boot  6.6.47+rpt-rpi-v Tue May  6 09:24   still running
wtmp begins Wed Apr 23 09:46:29 2025