pacman-database: add page (#5302)

pages/linux/pacman-database.md

@@ -0,0 +1,29 @@
+# pacman --database
+
+> Operate on the Arch Linux package database.
+> Modify certain attributes of the installed packages.
+> More information: <https://man.archlinux.org/man/pacman.8>.
+
+- Display help:
+
+`pacman --database --help`
+
+- Mark a package as implicitly installed:
+
+`sudo pacman --database --asdeps {{package_name}}`
+
+- Mark a package as explicitly installed:
+
+`sudo pacman --database --asexplicit {{package_name}}`
+
+- Check that all the package dependencies are installed:
+
+`pacman --database --check`
+
+- Check the repositories to ensure all specified dependencies are available:
+
+`pacman --database --check --check`
+
+- Display only error messages:
+
+`pacman --database --check --quiet`