apt-install

Install packages from configured repositories.

TLDR

Install a package or update it to the latest version

$ sudo apt install [package]

Display verbose version information during installation

$ sudo apt install -V [package]

Install a specific version of a package

$ sudo apt install [package]=[version]

Install without prompting for confirmation

$ sudo apt install -y [package]

Reinstall an already installed package

$ sudo apt install --reinstall [package]

SYNOPSIS

apt install [options] package...

apt install is the standard command for installing packages on Debian-based distributions. It handles dependency resolution, downloads packages from configured repositories, and installs them on the system.
If the specified package is already installed, the command will upgrade it to the latest available version. Multiple packages can be specified in a single command.

PARAMETERS

-y, --yes

Automatic yes to prompts; assume "yes" as answer to all prompts

-V, --verbose-versions

Show full versions for upgraded and installed packages

--reinstall

Reinstall packages even if they are already up-to-date

--no-install-recommends

Do not install recommended packages

-d, --download-only

Download packages but do not install them

CONFIGURATION

/etc/apt/sources.list

Package source repositories.

/etc/apt/apt.conf

Main APT configuration file.

/etc/apt/apt.conf.d/

Directory for drop-in configuration fragments.

CAVEATS

Requires root privileges. The command may remove conflicting packages to satisfy dependencies. Use apt-get install in scripts for more stable output formatting.