0 * * * * <command>
should work and will run at every 1 hour
References
https://serverfault.com/questions/256131/how-to-cron-run-every-1-hour-on-ubuntu-9
https://unix.stackexchange.com/questions/55287/crontab-e-then-0-every-hour-where-is-stored
0 * * * * <command>
should work and will run at every 1 hour
References
https://serverfault.com/questions/256131/how-to-cron-run-every-1-hour-on-ubuntu-9
https://unix.stackexchange.com/questions/55287/crontab-e-then-0-every-hour-where-is-stored