apt flags & options

`install`

Install one or more packages.

sudo apt install nginx

sudo apt install build-essential git curl

Remove a package but keep its configuration files.

sudo apt remove nginx

sudo apt purge nginx

Refresh the package index from all configured sources.

sudo apt update

Upgrade all installed packages to their latest versions.

sudo apt upgrade

sudo apt update && sudo apt upgrade

Search for packages by name or description.

apt search postgresql

apt search "image editor"

Show all currently installed packages.

apt list --installed

apt list --installed | grep php

Remove packages that were installed as dependencies but are no longer needed.

sudo apt autoremove

Automatically answer yes to prompts, useful for scripting.

sudo apt install -y docker.io

sudo apt upgrade -y

Install only required dependencies, skipping recommended packages.

sudo apt install --no-install-recommends python3

sudo apt install -y --no-install-recommends build-essential