Re: convert crontab jobs to systemd timers

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On Tue, 2022-04-05 at 20:18 +0000, olivares33561 via users wrote:
> How can I convert a crontab
> #
> [olivares@fedora Downloads]$ crontab -l
> # min  hour day-of-month month day-of-week command
> # 0-59 0-23    1-31    1-12  0-6 0=sun 1=mon
> #50 04 * * 1-5 ~/.xalarm >/dev/null 2>&1
> #50 04 * * 0,6 ~/.salarm >/dev/null 2>&1
> #59 09 * * 0,6 ~/.salarm >/dev/null 2>&1
> #00 07 * * 1-5 ~/.xalarm >/dev/null 2>&1
> 42 08 * * 1-5 ~/.dalarm >/dev/null 2>&1
> 52 09 * * 1-5 ~/.dalarm >/dev/null 2>&1
> 40 10 * * 1-5 ~/.dalarm >/dev/null 2>&1
> 28 11 * * 1-5 ~/.dalarm >/dev/null 2>&1
> 16 12 * * 1-5 ~/.dalarm >/dev/null 2>&1
> 57 12 * * 1-5 ~/.dalarm >/dev/null 2>&1
> 40 14 * * 1-5 ~/.dalarm >/dev/null 2>&1
> 28 15 * * 1-5 ~/.dalarm >/dev/null 2>&1
> 17 16 * * 1-5 ~/.dalarm >/dev/null 2>&1
> #30 16 * * 1-5 ~/.lalarm > /dev/null 2>&1
> 25 16 * * 1-5 /usr/sbin/poweroff >/dev/null 2>&1
> 
> #
> to systemd timers?  An easy idiot proof way.  The .dalarm script
> calls mplayer and plays from a playlist.

Tangentially, can you get mplayer to make sounds when it's not *you*
that runs it?  i.e. A system user rather than a real user.

> 
> I have read https://opensource.com/article/20/7/systemd-timers
> and https://www.maketecheasier.com/use-systemd-timers-as-cron-replacement/
> 
> but have not tried it out.  Any help on this is appreciated.

You could look at this, too:
https://wiki.archlinux.org/title/Systemd/Timers
Archlinux docs often get good recommendations

NB:  I've only just looked at this just now, I've only ever done the
odd crontab thing a few times.  Each time I have to work it out.

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