I am facing this warning error while doing sudo apt update, I think some files in the source.list.d is being more than once that's what causing the error. I don't want to mess with the system and want an expert advice which things should I remove so that my system remain safe. I am using ubuntu 20.04 Focal
W: Target Packages (sutton/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Packages (sutton/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Packages (sutton/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Translations (sutton/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Translations (sutton/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11 (sutton/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11 (sutton/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11-icons-small (sutton/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11-icons (sutton/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11-icons-hidpi (sutton/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target CNF (sutton/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target CNF (sutton/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Packages (sutton.simon/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Packages (sutton.simon/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Packages (sutton.simon/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Translations (sutton.simon/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Translations (sutton.simon/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11 (sutton.simon/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11 (sutton.simon/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11-icons-small (sutton.simon/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11-icons (sutton.simon/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11-icons-hidpi (sutton.simon/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target CNF (sutton.simon/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target CNF (sutton.simon/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Packages (sutton/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Packages (sutton/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Packages (sutton/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Translations (sutton/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Translations (sutton/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11 (sutton/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11 (sutton/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11-icons-small (sutton/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11-icons (sutton/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target DEP-11-icons-hidpi (sutton/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target CNF (sutton/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target CNF (sutton/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:1 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:1
W: Target Packages (sutton.simon/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Packages (sutton.simon/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Packages (sutton.simon/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Translations (sutton.simon/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target Translations (sutton.simon/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11 (sutton.simon/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11 (sutton.simon/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11-icons-small (sutton.simon/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11-icons (sutton.simon/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target DEP-11-icons-hidpi (sutton.simon/dep11/icons-64x64@2.tar) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target CNF (sutton.simon/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
W: Target CNF (sutton.simon/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/oem-sutton.simon-baara-meta.list:3 and /etc/apt/sources.list.d/oem-sutton.simon-ballantine-meta.list:3
============================================================================
" Netrw Directory Listing (netrw v165)
" /etc/apt/sources.list.d
" Sorted by name
" Sort sequence: [\/]$,\<core\%(\.\d\+\)\=\>,\.h$,\.c$,\.cpp$,\~\=\*$,*,\.o$,\.obj$,\.info$,\.swp$,\.bak$,\~$
" Quick Help: <F1>:help -:go up dir D:delete R:rename s:sort-by x:special
" ==============================================================================
../
./
cuda-ubuntu2004-11-7-local.list
cuda-ubuntu2004-11-7-local.list.save
google-chrome.list
google-chrome.list.save
maarten-baert-ubuntu-simplescreenrecorder-focal.list
maarten-baert-ubuntu-simplescreenrecorder-focal.list.save
oem-sutton.simon-baara-meta.list
oem-sutton.simon-baara-meta.list.save
oem-sutton.simon-ballantine-meta.list
oem-sutton.simon-ballantine-meta.list.save
ros-latest.list
ros-latest.list.save
teams.list
teams.list.save
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"sources.list.d" is a directory 8,1 All