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--- планирование_выполнения_заданий [2009/03/11 12:48]
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+++ планирование_выполнения_заданий [2011/02/21 17:38]
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@@ Line 1: / Line 1: @@
 ====== Планирование выполнения заданий ======
-===== Сервис cron =====
+===== Примеры периодических задач =====
+==== Ротация файлов регистрации ====
 <code>
-[gX:~] # crontab -e
+# cat /etc/newsyslog.conf
-LANG=ru_RU.KOI8-R
+</code><code>
-* * * * * /bin/date > /dev/console
+...
+/var/log/clamd.log                      600  7     10   *     J
+/var/log/httpd-access.log               644  10    1000 *     JC    /var/run/httpd.pid 30
+/var/log/httpd-error.log                644  10    1000 *     JC    /var/run/httpd.pid 30
+/var/log/httpd-ssl_request.log          644  10    1000 *     JC    /var/run/httpd.pid 30
+</code><code>
+# cat logger.sh
+</code><code>
+while :
+do
+  logger -t clamd -p local7.info "Message 1"
+  logger -t clamd -p local7.info "Message 2"
+done
+</code><code>
+# sh logger.sh
+...
+<Ctrl>-C
-[gX:~] # crontab -l
+# tail -f /var/log/clamd.log
+...
+<Ctrl>-C
-[gX:~] # crontab -r
+# newsyslog
+# ls -l /var/log/clamd.log*
+</code>
+==== Обновление системы ====
+<code>
+# freebsd-update fetch
+</code>
+==== Обновление дерева портов ====
+<code>
+# portsnap fetch
+</code>
+==== Резервное копирование файлов конфигурации ====
+<code>
+# cat backup.sh
+#!/bin/sh
+echo Backup conf
+cd /; /usr/bin/tar -cjf - etc/ usr/local/etc/ var/named/etc/namedb | ssh userX@isp "cat > backup.`date '+%Y%m%d'`.tbz"
+</code>
+или попроще:
+<code>
+# cat backup.sh
+#!/bin/sh
+echo Backup conf
+cd /; /usr/bin/tar -cjf - etc/ usr/local/etc/ | rsh -l userX isp "cat > backup.tbz"
+# chmod +x backup.sh
+</code>
+===== Сервис cron =====
+<code>
+# cat /etc/crontab
+...
+# crontab -e
+# crontab -l
+0 * * * /usr/sbin/freebsd-update cron
+0 * * * /usr/sbin/portsnap cron
+0 * * * /root/backup.sh
+# crontab -l -u root
+...
+# crontab -r
 </code>
@@ Line 18: / Line 84: @@
 <code>
-[gX:~] # periodic daily
+# periodic daily
-[gX:~] # more /var/mail/root
+# more /var/mail/root
-[gX:~] # rm /var/mail/root
+# rm /var/mail/root
 </code>
 ==== Настройка ====
 <code>
-[gX:~] # grep df /etc/defaults/periodic.conf
+# grep df /etc/defaults/periodic.conf
-[gX:~] # cat /etc/periodic.conf
+# cat /etc/periodic.conf
 daily_status_disks_df_flags="-h -t ufs"
 </code>
@@ Line 36: / Line 101: @@
 ==== Расширение ====
 <code>
-[gX:~] # pkg_add /usr/ports/packages/All/portaudit.tbz
+# pkg_add /usr/ports/packages/All/portaudit.tbz
-[gX:~] # ls /usr/local/etc/periodic/security
+# ls /usr/local/etc/periodic/security
-[gX:~] # periodic daily
+# cp backup.sh /usr/local/etc/periodic/daily/
-[gX:~] # more /var/mail/root
+# periodic daily
+# more /var/mail/root
 </code>
-===== Система at =====
+===== Система atrun =====
 <code>
-[gX:~] # echo "/bin/date > /dev/console" | at now + 3 minutes
+# echo "/bin/date > /dev/console" | at now + 3 minutes
-[gX:~] # echo "/bin/date > /dev/console" | at 18:40
+# echo "/bin/date > /dev/console" | at 18:40
-[gX:~] # echo "rm –rf /*" | at 23:59 12/31/2015
+# echo "rm –rf /*" | at 23:59 12/31/2015
-[gX:~] # atq
+# atq
-[gX:~] # atrm 3
+# atrm 3
-[gX:~] # at -c 2
+# at -c 2
 ...
 </code>

Методические материалы Лохтурова Вячеслава

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