如何查看将从 apt 更新的软件包？

Question

我在登录时在我的服务器上看到，有一些更新可用。

如何在不启动更新的情况下查看将在我的服务器上更新哪些软件包？

Answer 1

使用--dry-run, -s, --simulate, --just-print, --recon,--no-act参数，它实际上不会做任何事情，它只会告诉你它会做什么：

从 apt-get 手册页

-s, --simulate, --just-print, --dry-run, --recon, --no-act
          No action; perform a simulation of events that would occur but do
          not actually change the system. Configuration Item:
          APT::Get::Simulate.

          Simulate prints out a series of lines each one representing a dpkg
          operation, Configure (Conf), Remove (Remv), Unpack (Inst). Square
          brackets indicate broken packages with and empty set of square
          brackets meaning breaks that are of no consequence (rare).

如此轻松地查看命令：

apt-get upgrade --dry-run

或者

apt-get upgrade -s