Every user on a system may have their own crontab file.
cron files are usually located under
/etc/crontab file is system-wide.
/etc/cron.d directory may contain cron files. Some Linux distributions
cron.deny specifies users who cannot use cron.
cron daemon will not catchup and run past queries in a case of the system being off (powered off or the daemon being stopped).
cron logs the actions via syslog (either
In the crontab file you cannot use
\ to extend a command over multiple lines.
cron requires that commands are terminated with a new line, including the last line.