Use crontab When
You want a familiar, simple schedule and broad portability.
The job is straightforward and does not need service-unit integration.
Compare
crontab vs systemd timer
How to choose between traditional cron scheduling and systemd-native timers.
Cron is still widely understood and portable. systemd timers integrate more naturally with modern Linux services, units, logs, and dependencies.
Use systemd Timers When
You want tighter integration with units, logging, dependency control, and service state.
You are already operating in a systemd-native environment and want consistency.
Rule of Thumb
Cron is simple and portable. Timers fit modern systemd workflows better.
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