Update cheatsheets

tldr/linux/expac

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# expac
+
+> A data extraction tool for alpm databases, offering printf-like flexibility for pacman-based utilities.
+> See also: `pacman`.
+> More information: <https://github.com/falconindy/expac>.
+
+- List the dependencies of a package:
+
+`expac -S '%D' {{package}}`
+
+- List the optional dependencies of a package:
+
+`expac -S "%o" {{package}}`
+
+- List the download size of packages in MiB:
+
+`expac -S -H M '%k	%n' {{package1 package2 ...}}`
+
+- List packages marked for upgrade with their download size:
+
+`expac -S -H M '%k	%n' $(pacman -Qqu) | sort -sh`
+
+- List explicitly-installed packages with their optional dependencies:
+
+`expac -d '
+
+' -l '
+	' -Q '%n
+	%O' $(pacman -Qeq)`