Arch linux Backup pacman package list pacman -Qqet | grep -v “$(pacman -Qqg base)” | grep -v “$(pacman -Qqm)” > pacman-packages.txt   Restore pacman package  pacman -S –needed $(cat pacman-packages.txt)   Backup yaourt package list pacman -Qm > yaourt-packages.txt   Backup yaourt package yaourt -S –needed –noconfirm $(cat yaourt-packages.txt)    

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