Arch Package Managers

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git clone https://aur.archlinux.org/package-query.git
cd package-query/
makepkg -si
cd ..
rm -rf package-query/

git clone https://aur.archlinux.org/yay.git
cd yay
makepkg -si
rm -rf yay/

Deletes cached versions of installed and uninstalled packages, except for the most recent 2:

paccache -r -k2

Remove package cache and currently unused sync databases:

pacman -Sc

Remove cached AUR package and any untracked Files in the cache

yay -Sc