# aptitude

> Debian and Ubuntu package management utility.
> More information: <https://manpages.debian.org/latest/aptitude/aptitude.8.html>.

- Synchronize list of packages and versions available. This should be run first, before running subsequent `aptitude` commands:

`aptitude update`

- Install a new package and its dependencies:

`aptitude install {{package}}`

- Search for a package:

`aptitude search {{package}}`

- Search for an installed package (`?installed` is an `aptitude` search term):

`aptitude search '?installed({{package}})'`

- Remove a package and all packages depending on it:

`aptitude remove {{package}}`

- Upgrade installed packages to the newest available versions:

`aptitude upgrade`

- Upgrade installed packages (like `aptitude upgrade`) including removing obsolete packages and installing additional packages to meet new package dependencies:

`aptitude full-upgrade`

- Put an installed package on hold to prevent it from being automatically upgraded:

`aptitude hold '?installed({{package}})'`