how to get apt-get code example

Example 1: check installed packages apt-get

apt list --installed

Example 2: apt-get install

# first make sure all systems are up to date (raspberry pi)
sudo apt-get update && sudo apt-get upgrade

# install the desired package
sudo apt-get install <package name> or <download link>

Example 3: redisclient apt get

sudo apt-get install redis-tools