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%sccs.include.proprietary.roff%
@(#)cron.8 8.1 (Berkeley) 06/06/93
The crontab files consist of lines of seven fields each. The fields are separated by spaces or tabs. The first five are integer patterns to specify:
2m minute (0-59) .nr .0 \n()Pu .nr )P 0
2m hour (0-23)
2m day of the month (1-31)
2m month of the year (1-12)
2m day of the week (1-7 with 1 = Monday) .nr )P \n(.0u
Each of these patterns may contain:
2m a number in the range above .nr .0 \n()Pu .nr )P 0
2m two numbers separated by a minus meaning a range inclusive
2m a list of numbers separated by commas meaning any of the numbers
2m an asterisk meaning all legal values .nr )P \n(.0u
The sixth field is a user name: the command will be run with that user's uid and permissions. The seventh field consists of all the text on a line following the sixth field, including spaces and tabs; this text is treated as a command which is executed by the Shell at the specified times. A percent character (``%'') in this field is translated to a new-line character.
Both crontab files are checked by cron every minute, on the minute.