Run command on specific date?

QuickQuokka · 2022-05-26 07:42:21

Hello, fellow Arch users!

I want on the 15th of August, 2022, for it to automatically run timedatectl set-timezone Europe/Dublin, as I'm moving to Ireland on that date, and I forget to do stuff, or just put it off.

How do I do this?

dogknowsnx · 2022-05-26 07:45:27

https://wiki.archlinux.org/title/Cron#Examples

Slithery · 2022-05-26 11:33:14

https://wiki.archlinux.org/title/Systemd/Timers

ddeimeke · 2022-05-27 05:07:23

QuickQuokka wrote:

I want on the 15th of August, 2022, for it to automatically run timedatectl set-timezone Europe/Dublin, as I'm moving to Ireland on that date, and I forget to do stuff, or just put it off.

For one-time-shots I would prefer at, please don't do cronjobs for that purpose they get repeated (at least once a year).

For your example (all commands as root user):

pacman -S at
systemctl enable --now atd

echo "/usr/bin/timedatectl set-timezone Europe/Dublin" | at "05:00 08152022"

See also: https://linuxhandbook.com/at-command/

Cheers

Dirk

P.S.: I did not find the fitting wiki page in Arch Linux Wiki.

dogknowsnx · 2022-05-27 06:48:07

ddeimeke wrote:

For one-time-shots I would prefer at, please don't do cronjobs for that purpose they get repeated (at least once a year)

Good point - I call that system maintanance (use a crontab as a monthly reminder ).

progandy · 2022-05-27 10:12:35

If you move regularly without using a vpn, you could also set up a timer that determines the timezone using your ip with e.g. worldtimeapi.org

curl "https://worldtimeapi.org/api/ip" | jq -r .timezone

Arch Linux

#1 2022-05-26 07:42:21

Run command on specific date?

#2 2022-05-26 07:45:27

Re: Run command on specific date?

#3 2022-05-26 11:33:14

Re: Run command on specific date?

#4 2022-05-27 05:07:23

Re: Run command on specific date?

#5 2022-05-27 06:48:07

Re: Run command on specific date?

#6 2022-05-27 10:12:35

Re: Run command on specific date?

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