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Cron job script
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/etc/cron.daily/logroate
|
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Configuration file
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/etc/logrotate.conf
|
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Hourly or customized
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a. /etc/cron.hourly
b. crontab (see below) |
cron.daily run? grep run-parts /etc/crontab
# Example of job definition:
# .---------------- minute (0 - 59)
# | .------------- hour (0 - 23)
# | | .---------- day of month (1 - 31)
# | | | .------- month (1 - 12)
# | | | | .---- day of week (0 - 6) (Sun=0 or 7)
# | | | | |
# \* \* \* \* \* command to be executed|
list crontab
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crontab -l // Current user specific |
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create crontab
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crontab -e // Current user specific |
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user's crontab file
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// DON'T edit directly
CentOS:/var/spool/cron/$user Ubuntu /var/spool/cron/crontabs/$user |
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system-wide crontab
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// Username field is required
/etc/crontab |
# do daily/weekly/monthly maintenance# min hour day month weekday command*/15 * * * * run-parts /etc/periodic/15min0 * * * * run-parts /etc/periodic/hourly0 2 * * * run-parts /etc/periodic/daily0 3 * * 6 run-parts /etc/periodic/weekly0 5 1 * * run-parts /etc/periodic/monthly
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