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anacrontab
Langue: en
Version: 173965 (fedora - 06/07/09)
Section: 5 (Format de fichier)
Sommaire
NAME
/etc/anacrontab - configuration file for anacronDESCRIPTION
The file /etc/anacrontab describes the jobs controlled by anacron(8). Its lines can be of three kinds: job-description lines, environment assignments, or empty lines.Job-description lines are of one of these two forms:
period delay job-identifier command
@period_name delay job-identify command
The period is specified in days, the delay in minutes. In addition, if the RANDOM_DELAY environment variable is set, then the value of RANDOM_DELAY is added to the delay. The value in RANDOM_DELAY denotes a maximal additional delay in minutes, where the minimum delay value is set, to user delay from anacrontab. A RANDOM_DELAY set to 12 would therefore add, randomly, between 0 and 12 minutes to the user defined delay. The job-identifier can contain any non-blank character, except slashes. It is used to identify the job in Anacron messages, and as the name for the job's timestamp file. The command can be any shell command. The fields can be seperated by blank spaces or tabs. The period_name can only be set to monthly at the present time. This will ensure jobs are only run once a month, no matter the number of days in this month, or the previous month.
Environment assignment lines are of the form:
VAR = VALUE
Spaces around VAR are removed. No spaces around VALUE are allowed (unless you want them to be part of the value). The assignment takes effect from the next line to the end of the file, or to the next assignment of the same variable. The enviroment variable START_HOURS_RANGE sets the time frame, when the job could started.
Empty lines are either blank lines, line containing white-space only, or lines with white-space followed by a '#' followed by an arbitrary comment.
You can continue a line onto the next line by ending it with a ''.
EXAMPLE
# environment variables SHELL=/bin/sh PATH=/sbin:/bin:/usr/sbin:/usr/bin MAILTO=root RANDOM_DELAY=60 # Anacron jobs will start between 6 and 8 o'clock. START_HOURS_RANGE=6-8 # delay will be 5 minutes + RANDOM_DELAY for cron.daily 1 5 cron.daily nice run-parts /etc/cron.daily 7 8 cron.weekly nice run-parts /etc/cron.weekly @monthly 35 cron.monthly nice run-parts /etc/cron.monthly
SEE ALSO
anacron(8)The Anacron README file.
AUTHOR
Itai Tzur <itzur@actcom.co.il>Currently maintained by Pascal Hakim <pasc@(debian.org|redellipse.net)>.
For Fedora maintained by Marcela Mašláňová <mmaslano@redhat.com>.
Contenus ©2006-2024 Benjamin Poulain
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