admin:linux:arch [~wiki]

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====== Arch Linux =====

===== Pacman =====

see also: [[https://wiki.archlinux.org/index.php/Pacman_Rosetta|Pacman Rosetta]]

^ uninstall packages with regex matching | ''sudo pacman -R $(pacman -Qsq haskell)'' |
^ [[https://wiki.archlinux.org/index.php/Pacman#Search_for_a_package_that_contains_a_specific_file|find package which contains given file]] | ''pkgfile file'' |
^ find all modified config files | ''pacman -Qii | grep "^MODIFIED" | cut -f2'' |
^ list all manually installed packages | ''pacman -Qet'' |
^ install optional dependencies for a package | ''%%pacman -S --asdeps --needed%%'' |

===== Hardware Video Acceleration =====

check with ''vdpauinfo'', install ''mesa-vdpau'' for Radeon GPUs.

(source: [[https://wiki.archlinux.org/index.php/Hardware_video_acceleration|Arch Wiki]])

==== /etc/pacman.conf ====

<file bash /etc/pacman.conf>
IgnorePkg # ignore updates
HoldPkg # pacman will ask for confirmation before --remove
</file>
===== same style for GTK+ and Qt applications =====

<file conf /etc/xdg/Trolltech.conf>
[Qt]
style=GTK+
</file>

([[https://wiki.archlinux.org/index.php/Uniform_Look_for_Qt_and_GTK_Applications|Source]])

===== Performance =====

==== CPU-Governor ====

<file conf /etc/default/cpupower>
governor='performance'
</file>

===== Tools =====
  * [[https://github.com/CyberShadow/aconfmgr|aconfmgr]] – track, manage, and restore the configuration of an Arch Linux system.
  * [[https://github.com/archlinux/archinstall|Archinstall]] – guided installation.