Install software Commands Command Description apt debian package manager Tasks 1. Update the apt repository sudo apt update 2. Install the tcpdump package sudo apt install tcpdump 3. Search the ufw package sudo apt search ufw 4. Install the packages dnsutils and nmap sudo apt install dnsutils nmap 5. Remove the nmap package and purge all configs sudo apt remove nmap --purge 6. List all installed packages sudo apt list --installed | more