cron(8) - daemon to execute scheduled commands (Vixie Cron)
-f      Stay in foreground mode, don't daemonize.
-l      Enable  LSB  compliant  names  for  /etc/cron.d files. This setting, however, does not affect the
        parsing of files under /etc/cron.hourly, /etc/cron.daily, /etc/cron.weekly or /etc/cron.monthly.
-L loglevel
        Tell cron what to log about jobs (errors are logged regardless of this value) as the sum  of  the
        following values: