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Error while copying from db_bk/2/dev.php to db_bk/dev.php

Name	Size	Modified	Perms	Owner
..
2	Folder	19.08.26 23:42	0755	www-data:www-data
4	Folder	20.08.26 00:47	0755	www-data:www-data
base	Folder	20.08.26 00:39	0777	root:root
bk	Folder	20.08.26 00:48	0755	www-data:www-data
OLD	Folder	20.08.26 01:59	0755	www-data:www-data
qr	Folder	20.08.26 01:42	0755	www-data:www-data
ttest	Folder	20.08.26 01:39	0755	www-data:www-data
wg	Folder	20.08.26 01:59	0755	www-data:www-data
wg_t	Folder	20.08.26 01:03	0755	www-data:www-data
.db_bk.php	3.61 KiB	20.08.26 01:59	0644	www-data:www-data
.ttest.php	3.61 KiB	20.08.26 01:08	0644	www-data:www-data
Full size: 7.23 KiB, files: 2, folders: 9