> On 5 Apr 2022, at 21:19, olivares33561 via users 
> <users@lists.fedoraproject.org> wrote:
> 
> Dear kind Fedora users,
> 
> I have a crontab file that I use to play some files about 3 minutes before 
> bell rings between classes.  I had to install anacron with dnf command.  I 
> have seen emails where some folks recommend systemd timers.  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.
> 
> #
> [olivares@fedora Downloads]$ sudo systemctl list-timers
> [sudo] password for olivares:
> NEXT                        LEFT          LAST                        PASSED 
> UN>
> Tue 2022-04-05 15:13:39 CDT 1min 46s left n/a                         n/a    
> sy>
> Tue 2022-04-05 15:38:11 CDT 26min left    n/a                         n/a    
> dn>
> Wed 2022-04-06 00:00:00 CDT 8h left       Tue 2022-04-05 05:34:07 CDT 9h ago 
> lo>
> Wed 2022-04-06 00:00:00 CDT 8h left       Tue 2022-04-05 05:34:07 CDT 9h ago 
> un>
> Wed 2022-04-06 00:34:55 CDT 9h left       Tue 2022-04-05 05:34:07 CDT 9h ago 
> pl>
> Sun 2022-04-10 01:00:00 CDT 4 days left   Tue 2022-04-05 05:34:07 CDT 9h ago 
> ra>
> Mon 2022-04-11 00:20:16 CDT 5 days left   Tue 2022-04-05 05:34:07 CDT 9h ago 
> fs>
> 
> 7 timers listed.
> Pass --all to see loaded but inactive timers, too.
> #
> 
> 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.  I want to test 
> it out.  Thank you in advance

Why not try it out? What is stopping you?

The only thing I would add to you reading list if the man page for systemd.timer

I would start with a timer service that uses /bin/echo that you can use to see 
that the timer service runs when you expect.

Barry


> 
> Regards,
> 
> 
> Antonio
> Sent from ProtonMail, encrypted email based in Switzerland.
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