答案1
第一:deja-dub --backup
在终端中输入内容会立即开始备份。
第二步:打开终端并输入crontab -e
,按回车键,然后输入2
以选择 nano 编辑器。再次输入,现在您将获得类似的文本;
# Edit this file to introduce tasks to be run by cron.
#
# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
#
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use '*' in these fields (for 'any').#
# Notice that tasks will be started based on the cron's system
# daemon's notion of time and timezones.
#
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
#
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
#
# For more information see the manual pages of crontab(5) and cron(8)
#
# m h dom mon dow command
到目前为止,我理解应该按照0 12 * * * deja-dup --backup
没有#
at start 的命令,在凌晨 12 点开始备份(我假设这里是 24 小时系统)。
更多示例:
5 12 * * * deja-dup --backup
:于凌晨 12:05 开始备份
* 12 5 * * deja-dup --backup
:每月 5 日凌晨 12 点开始备份
* 6 * 2 * deja-dup --backup
:2 月 3 日凌晨 6 点开始备份
参考这个 askubuntu 问题更好地了解 Ubuntu 中的 cron 任务