apt

Update Package Lists

Update the list of available packages.

sudo apt update

Upgrade Packages

Upgrade all installed packages.

sudo apt upgrade

Upgrade with automatic conflict resolution.

sudo apt full-upgrade

Install Package

Install a new package.

sudo apt install [package]

Install without prompts.

sudo apt install -y [package]

Remove Package

Remove a package (keep configuration files).

sudo apt remove [package]

Remove package and configuration files.

sudo apt purge [package]

Remove Unused Packages

Remove packages that were automatically installed and are no longer needed.

sudo apt autoremove

Search for Package

Search for packages by name or description.

apt search [package]

Show Package Information

Display detailed information about a package.

apt show [package]

List Packages

List all installed packages.

apt list --installed

List upgradable packages.

apt list --upgradable

Clean Cache

Remove downloaded package files.

sudo apt clean

Remove old package files only.

sudo apt autoclean

Fix Broken Dependencies

Attempt to fix broken dependencies.

sudo apt --fix-broken install

Reconfigure Package

Reconfigure an already installed package.

sudo dpkg-reconfigure [package]

APT Mark

Hold Package Version

Prevent a package from being upgraded.

sudo apt-mark hold [package]

Unhold Package

Allow a held package to be upgraded again.

sudo apt-mark unhold [package]

List Held Packages

Show all packages that are held.

apt-mark showhold

Mark as Manually Installed

Mark a package as manually installed (won't be removed by autoremove).

sudo apt-mark manual [package]

Mark as Automatically Installed

Mark a package as automatically installed.

sudo apt-mark auto [package]

Repository Management

Add Repository

sudo add-apt-repository ppa:repository/name
sudo apt update

Remove Repository

sudo add-apt-repository --remove ppa:repository/name

Check for Updates

Check if updates are available without installing.

apt list --upgradable

Download Package Without Installing

Download package file without installing.

apt download [package]

Common Options