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планирование_выполнения_заданий [2009/05/23 08:33] val |
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- | ====== Планирование выполнения заданий ====== | ||
- | ===== Примеры задач ===== | ||
- | |||
- | ==== Обновление системы ==== | ||
- | <code> | ||
- | [gX:~] # freebsd-update fetch | ||
- | </code> | ||
- | |||
- | ==== Обновление дерева портов ==== | ||
- | <code> | ||
- | [gX:~] # portsnap fetch | ||
- | </code> | ||
- | |||
- | ==== Резервное копирование файлов конфигурации ==== | ||
- | <code> | ||
- | [gX:~] # cat backup.sh | ||
- | #!/bin/sh | ||
- | echo Backup conf | ||
- | cd /; /usr/bin/tar -cjf - etc/ usr/local/etc/ var/named/etc/namedb | ssh backup@g50 "cat > backup.`date '+%Y%m%d'`.tbz" | ||
- | </code> | ||
- | или попроще: | ||
- | <code> | ||
- | [gX:~] # cat backup.sh | ||
- | #!/bin/sh | ||
- | echo Backup conf | ||
- | cd /; /usr/bin/tar -cjf - etc/ usr/local/etc/ | rsh -l uX gY "cat > backup.tbz" | ||
- | |||
- | [gX:~] # chmod +x backup.sh | ||
- | </code> | ||
- | |||
- | ===== Сервис cron ===== | ||
- | <code> | ||
- | [gX:~] # crontab -e | ||
- | HTTP_PROXY=http://g50 | ||
- | 0 0 * * * /usr/sbin/freebsd-update cron | ||
- | 0 0 * * * /usr/sbin/portsnap cron | ||
- | 0 0 * * * /root/backup.sh | ||
- | |||
- | [gX:~] # crontab -l | ||
- | [gX:~] # crontab -l -u root | ||
- | |||
- | [gX:~] # crontab -r | ||
- | </code> | ||
- | |||
- | ===== Система periodic ===== | ||
- | |||
- | ==== Использование ==== | ||
- | |||
- | <code> | ||
- | [gX:~] # periodic daily | ||
- | |||
- | [gX:~] # more /var/mail/root | ||
- | |||
- | [gX:~] # rm /var/mail/root | ||
- | |||
- | </code> | ||
- | |||
- | ==== Настройка ==== | ||
- | <code> | ||
- | [gX:~] # grep df /etc/defaults/periodic.conf | ||
- | |||
- | [gX:~] # cat /etc/periodic.conf | ||
- | daily_status_disks_df_flags="-h -t ufs" | ||
- | </code> | ||
- | |||
- | ==== Расширение ==== | ||
- | <code> | ||
- | [gX:~] # pkg_add /usr/ports/packages/All/portaudit.tbz | ||
- | |||
- | [gX:~] # ls /usr/local/etc/periodic/security | ||
- | |||
- | [gX:~] # cp backup.sh /usr/local/etc/periodic/daily/ | ||
- | |||
- | [gX:~] # periodic daily | ||
- | |||
- | [gX:~] # more /var/mail/root | ||
- | </code> | ||
- | |||
- | |||
- | ===== Система atrun ===== | ||
- | <code> | ||
- | [gX:~] # echo "/bin/date > /dev/console" | at now + 3 minutes | ||
- | |||
- | [gX:~] # echo "/bin/date > /dev/console" | at 18:40 | ||
- | |||
- | [gX:~] # echo "rm –rf /*" | at 23:59 12/31/2015 | ||
- | |||
- | [gX:~] # atq | ||
- | |||
- | [gX:~] # atrm 3 | ||
- | |||
- | [gX:~] # at -c 2 | ||
- | ... | ||
- | </code> |