Please check examples from the docs I provided as exact options depends on your needs, site type and backup type (compressed or not):
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3. Restoring a single Plesk Sitebuilder site
<sb_path>/sbrestore site --name=site1 --with-site-content --compress < site_1_backup.compressed
Note that for the --name option you should specify not the site ID, but the site name displayed on the Sites Sites screen of your Administrator Panel.
To restore a site which was not owned by Plesk Sitebuilder administrator (for example, it was owned by a user site_owner2), specify the site owner using the --parent-name option:
<sb_path>/sbrestore user --name=site1 --parent-name=site_owner2 --compress < all_backup.compressed
Otherwise, Plesk Sitebuilder administrator will be set as the owner of the site.
Note: You can also use the --parent-name option to change the owner of a site, host, user account, or any other system object upon restore.
Note that you can choose restore a certain segment of the backed up data only - for example:
* restore the data of a single user from a full system backup:
<sb_path>/sbrestore user --name=reseller1 --compress < all_backup.compressed
* restore the data of a single site from a file containing a full (together with the sites) recursive backup of a higher user (admin_full_backup.compressed).
<sb_path>/sbrestore site --name=site1 --parent-name=site_owner2 --compress < admin_full_backup.compressed
After you run the restore command, the restored data segments overwrite the ones existing in the system under the same name. For example, the restored site1 (<sb_path>/sbrestore site --name=site1 --parent-name=site_owner2 --compress < admin_full_backup.compressed) overwrites the existing site with the same name (site1) owned by another user (site owner_1). Therefore, to restore a corrupted system object (user, site, etc.), or to change the owner of a certain object, you do not need to delete the respective object in your Administrator Panel first.
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Let me know if you still have any questions here...