BusyBox v1.29.3 (2018-11-02 15:37:50 PDT) multi-call binary.
Usage: crond -fbS -l N -d N -L LOGFILE -c DIR
-f Foreground
-b Background (default)
-S Log to syslog (default)
-l N Set log level. Most verbose 0, default 8
-d N Set log level, log to stderr
-L FILE Log to FILE
-c DIR Cron dir. Default:/var/spool/cron/crontabs