install_steam.sh

#!/bin/bash

# create necessary directories
mkdir -p ~/steam
mkdir -p ~/steam/tmp
cd ~/steam/tmp

# download latest deb and unpack
wget https://cdn.cloudflare.steamstatic.com/client/installer/steam.deb
ar x steam.deb
tar xf data.tar.xz

# remove deb archives, not needed anymore
rm ./*.tar.xz ./steam.deb

# move deb contents to steam folder
mv ./usr/* ../
cd ../ && rm -rf ./tmp/

# create run script
echo '#!/bin/bash
export STEAMOS=1
export STEAM_RUNTIME=1
export DBUS_FATAL_WARNINGS=0
~/steam/bin/steam $@' > steam

# make script executable and move
chmod +x steam
sudo mv steam /usr/local/bin/

echo "Script complete."