Debian versions

6, 7, 8, 9, 10

squeeze(6), wheezy (7), jessie (8), stretch (9), buster (10)

cat > /etc/apt/sources.list <<EOF
#archive
deb http://archive.debian.org/debian/ `lsb_release -cs` main non-free contrib
deb-src http://archive.debian.org/debian/ `lsb_release -cs` main non-free contrib
EOF

#remove previous sources
rm /etc/apt/sources.list.d/*
apt-get update;