# Doubts with "purge" command
**URL:** https://forum.duplicati.com/t/doubts-with-purge-command/8295
**Category:** Support
**Created:** [October 21, 2019, 9:26pm UTC](https://forum.duplicati.com/t/doubts-with-purge-command/8295 "2019-10-21T21:26:08Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@tzinm](https://forum.duplicati.com/u/tzinm)
#### Post date: [October 21, 2019, 9:26pm UTC](https://forum.duplicati.com/t/doubts-with-purge-command/8295/1 "2019-10-21T21:26:08Z")
I am using Duplicati to send backups to Backblaze. My OS is **OpenMediaVault** and until few weeks ago I was using Duplicati as a plugin.
I try to migrate Duplicati into Docker. It seems that the migration had been done correctly, I **export** my configuration file and move the **database**.
When the Duplicati´s Docker start new backup it didn´t finish, the error was about database permissions (it doesn´t matter because I resolve that problem). Now when I try to do a new backup I have a message that says there are files in the remote that there aren´t in the local storage.
I know I can rebuild the database to add those files, but I want to remove from the remote storage. I try to extract the dindex name in the log file executing `grep unknown log.txt | cut -d : -f 5 | sed 's/ //g' > log1.txt `, and then pass all of the dindex names to de **purge** command. I try it but it seems that doesn´t work, I guess it only works with the files real name.
How can I procede to remove all the files that are not in my local storage? Maybe using other command?
Thanks in advance!
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### Author:  [@drwtsn32](https://forum.duplicati.com/u/drwtsn32)
#### Post date: [October 21, 2019, 9:50pm UTC](https://forum.duplicati.com/t/doubts-with-purge-command/8295/2 "2019-10-21T21:50:22Z")
> [@tzinm](#):
>
> I know I can rebuild the database to add those files…
A delete/recreate (rebuild) should not be necessary. You probably can just run a repair to have Duplicati scan those updated files in the destination and update the local database.
> [@tzinm](#):
>
> …and then pass all of the dindex names to de **purge** command…
The `purge` command isn’t to delete specific dblock/dlist/dindex files on the back end, it’s to remove certain source files/folders from backup data on the back end.
But I would advise doing what you’re thinking of doing. Deleting files manually from the back end may have undesirable or unintended consequences. Instead I’d recommend just trying a database repair.
Good luck.
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### Author:  [@tzinm](https://forum.duplicati.com/u/tzinm)
#### Post date: [October 22, 2019, 9:03pm UTC](https://forum.duplicati.com/t/doubts-with-purge-command/8295/3 "2019-10-22T21:03:47Z")
> [@drwtsn32](#):
>
> A delete/recreate (rebuild) should not be necessary. You probably can just run a repair to have Duplicati scan those updated files in the destination and update the local database.
I thought about that, but in the last backup the total remote storage increase around 50%. I guess it doesn´t recognize the files, and it consider as new files.
If I rebuild the database those files that are not new still be in the remote storage, so how can I decrease the total storage?
I don´t know if I explain myself correctly…