如何编写 bash 脚本来获取备份

Question

I want to write a bash script to backup my directories every day

this is my script

$ sudo tar -cvpzf /home/backup.tar.gz /home/data

how can I automate this

Answer 1

As @Fravadona suggested, your best bet would be to use a cron job. For such a short and self-explanatory command, I wouldn't even use a script per se.

You can add a new job just typing in your terminal sudo crontab -e for edit (since you want to run a command with sudo, this opens root 's crontab). To better understand how the frequency is configured, you can use for example crontab.guru .

Then, you can add the new entry using your preferred text editor. As suggested in the comments, you could add a timestamp to the tar file name to keep track of it.

For example, a backup that runs every day at 08:00:

0 8 * * * /usr/bin/sudo /usr/bin/tar -cvpzf /home/backup_`date +%s`.tar.gz /home/data

Note : The date +%s command returns a unix timestamp.