apt和aptitude

apt and apt-get provides online package update for the deb based distributions. We can list currently available updates of the current system with these apt and apt-get commands in different ways. We can list updateable or upgradeable packages for Linux distributions like Ubuntu, Debian, Mint, Kali etc.

apt和apt-get为基于deb的发行版提供在线软件包更新。 我们可以使用这些apt和apt-get命令以不同的方式列出当前系统的当前可用更新。 我们可以列出Linux发行版的可更新或可升级软件包，例如Ubuntu，Debian，Mint，Kali等。

更新存储库/软件包信息 (Update Repository/Packages Information)

In order to list available package updates, we have to get the latest updates from package repositories. So first we will get latest updates one of the following commands.

为了列出可用的软件包更新，我们必须从软件包存储库中获取最新的更新。 因此，首先我们将获得以下命令之一的最新更新。

$ sudo apt update

OR

要么

$ sudo apt update

We can see in the last line of the screenshot that the total numbers of the available updates are provided which is 3 in this case.

我们可以在屏幕快照的最后一行看到提供的可用更新总数，在这种情况下为3。

列出带有apt的可用更新 (List Available Updates with apt)

Now we can list available updates with the apt command by providing list --upgradeable options.

现在，我们可以通过提供list --upgradeable选项，使用apt命令列出可用的更新。

$ apt list --upgradeable