how to make shortcut in ubuntu code example

Example: ubuntu apt shortcuts

# 1. Explore readme at https://gist.github.com/juliyvchirkov/7ee6591b9744c36fa9ab73a1ca2ef544
# 2. Paste this commands sequence to your console
# 3. Execute
# 4. All done. Save your time typing 'apt i' / 'apt lu' instead of 'sudo apt
#    install' / 'sudo apt list --upgradable' etc. Feel free to add your own 
#    and modify the existing shortcuts. Enjoy!

pushd /usr/bin >/dev/null &&
sudo wget -q https://gist.githubusercontent.com/juliyvchirkov/7ee6591b9744c36fa9ab73a1ca2ef544/raw/apt.sh &&
sudo chmod 755 apt.sh &&
alias apt='/usr/bin/apt.sh' &&
printf "\nalias apt='/usr/bin/apt.sh'\n" >>~/.bashrc &&
popd >/dev/null