Installing yaourt on archlinux

You can use the following commands to install yaourt:

curl -O https://aur.archlinux.org/packages/pa/package-query/package-query.tar.gz
tar zxvf package-query.tar.gz
cd package-query
makepkg -si
cd ..
curl -O https://aur.archlinux.org/packages/ya/yaourt/yaourt.tar.gz
tar zxvf yaourt.tar.gz
cd yaourt
makepkg -si
cd ..

Another method to install yaourt is to add the repository to /etc/pacman.conf:

[archlinuxfr]
SigLevel = Never
Server = http://repo.archlinux.fr/$arch

And then use pacman to install yaourt:

pacman -Sy yaourt

Sources: http://archlinux.fr/yaourt-en