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--- packages:automatically_installed_packages [2016/07/05 15:32] – peter
+++ packages:automatically_installed_packages [2019/12/01 11:45] (current) – removed peter
@@ Line 1: / Line 1: @@
-====== Packages - Automatically installed packages ======
-Sometimes packages are installed automatically on the system because some other package recommends it, but they are not actually dependencies of packages:
-To know why an automatically installed package is present on the system, issue the command:
-<code bash>
-aptitude why package_name
-</code>
-Displays something like:
-<code bash>
-i   aptitude         Recommends apt-xapian-index
-i A apt-xapian-index Depends    python-debian (>= 0.1.15)
-</code>
-In contrast, **why-not** finds a dependency chain leading to a conflict with the target package:
-<code bash>
-aptitude why-not package_name
-</code>
-Displays something like:
-<code bash>
-i ocaml-core            Depends   ocamlweb
-i A ocamlweb            Depends   tetex-extra
-i A texlive-latex-extra Conflicts textopo
-</code>