‘是什麼意思−14−14-14“在“aptitude safe-upgrade”的輸出中是什麼意思？

執行完成後aptitude safe-upgrade，它會輸出如下內容：

Current status: 0 updates [-14].

什麼是“

$$ -14 $$“ 意思是？

我猜這是已升級的軟體包數量。您是否在確認提示中看到如下內容：

14 packages upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 230 MB/231 MB of archives. After unpacking 187 MB will be used.
Do you want to continue? [Y/n/?] 

引用自：https://serverfault.com/questions/482067