cron - Fifth field of crontab -


i new linux. have clear idea on how cron works, small doubt struck @ mind. suppose if want execute ls command on 5th march 5.30am, cron command 30 05 05 03 ?? ls.

my simple question entry come on ?? place. , suppose if enter 01 in position instead of ?? , happen. please excuse me if simple question , please me solve same.

in case

30    05    05  03   *        command executed -     -     -   -    - |     |     |   |    | |     |     |   |    +----- day of week (0 - 6) (sunday=0) |     |     |   +------- month (1 - 12) |     |     +--------- day of        month (1 - 31) |     +----------- hour (0 - 23) +------------- min (0 - 59)

?? says don't mind day of week because stating exact date. if place 01 still run redundant.


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