Package / system tool

apt — Debian family

apt is used for package management or system administration in the Debian family. Consult the distribution manual for release-specific behaviour.

Availability: Debian and Ubuntu releases; package sources and privileges vary.中文

Syntax

apt [options] command

Examples

apt is used for package management or system administration in the Debian family. Consult the distribution manual for release-specific behaviour.

sudo apt update

Show command help and options where supported.

apt --help

Parameters, options and clauses

Option / clause	Description
`update`	Refresh package indexes; this does not install upgrades.
`install <package>`	Install a package and its dependencies.
`remove / purge <package>`	Remove a package; purge also removes its configuration files.
`-y, --assume-yes`	Answer prompts automatically; inspect the proposed transaction first.
`-s, --simulate`	Show planned actions without changing the system.

Safety note

Review a command and its target before running it. Commands that alter files, services, accounts, disks, permissions or databases may be difficult to reverse. Test in a safe environment and keep backups.

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