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expac — A data extraction tool for alpm databases, offering printf-like flexibility for pacman-based utiliti

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandextractionclialpmtooldataforexpac

linux

Problem

How to use the expac command: 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#name>.

Solution

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#name>.

List the dependencies of a package:

expac {{[-S|--sync]}} '%D' {{package}}

List the optional dependencies of a package:

expac {{[-S|--sync]}} "%o" {{package}}

List the download size of packages in MiB:

expac {{[-S|--sync]}} {{[-H|--humansize]}} M '%k\t%n' {{package1 package2 ...}}

List packages marked for upgrade with their download size:

expac {{[-S|--sync]}} {{[-H|--humansize]}} M '%k\t%n' $(pacman -Qqu) | sort {{[-sh|--sort --human-numeric-sort]}}

List explicitly-installed packages with their optional dependencies:

expac {{[-d|--delim]}} '\n\n' {{[-l|--listdelim]}} '\n\t' {{[-Q|--query]}} '%n\n\t%O' $(pacman -Qeq)

Code Snippets

List the dependencies of a package

expac {{[-S|--sync]}} '%D' {{package}}

List the optional dependencies of a package

expac {{[-S|--sync]}} "%o" {{package}}

List the download size of packages in MiB

expac {{[-S|--sync]}} {{[-H|--humansize]}} M '%k\t%n' {{package1 package2 ...}}

List packages marked for upgrade with their download size

expac {{[-S|--sync]}} {{[-H|--humansize]}} M '%k\t%n' $(pacman -Qqu) | sort {{[-sh|--sort --human-numeric-sort]}}

List explicitly-installed packages with their optional dependencies

expac {{[-d|--delim]}} '\n\n' {{[-l|--listdelim]}} '\n\t' {{[-Q|--query]}} '%n\n\t%O' $(pacman -Qeq)

Context

tldr-pages: linux/expac

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