11-14-2006
if the way the crontab was edited is through editing /var/spool/cron/crontabs/root directly, the crontabs may not be updated accordingly until cron is restarted ... if the crontab was edited using "crontab -l > /tmp/file; vi /tmp/file" then cron may not even know of the changes until "crontab /tmp/file" is issued ... if the crontab was updated using "crontab -e" then there is no problem ...
btw, the message i wrote was for smallbook ... you just happened to put in your message while i was composing mine ...
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CRON(8) System Manager's Manual CRON(8)
NAME
cron - daemon to execute scheduled commands (Vixie Cron)
SYNOPSIS
cron
DESCRIPTION
Cron should be started from /etc/rc or /etc/rc.local. It will return immediately, so you don't need to start it with '&'.
Cron searches /var/spool/cron for crontab files which are named after accounts in /etc/passwd; crontabs found are loaded into memory. Cron
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ing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, if
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Additionally, cron checks each minute to see if its spool directory's modtime (or the modtime on /etc/crontab) has changed, and if it has,
cron will then examine the modtime on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab
file is modified. Note that the Crontab(1) command updates the modtime of the spool directory whenever it changes a crontab.
SEE ALSO
crontab(1), crontab(5)
AUTHOR
Paul Vixie <paul@vix.com>
4th Berkeley Distribution 20 December 1993 CRON(8)