---
title: pacman
keywords:
  - Arch Linux
  - pacman
categories:
  - Linux
tags:
  - Arch Linux
date: 2022-08-31 14:08:30
---

``` bash 使用 rankmirrors 将 mirrorlist 中的 mirrors 进行排序
rankmirrors /etc/pacman.d/mirrorlist.china > /etc/pacman.d/mirrorlist
```

# 自动清理老旧的包缓存

建立一个 hook 文件在 `/etc/pacman.d/hooks/clean_package_cache.hook`，内容如下：

``` conf
[Trigger]
Operation = Upgrade
Operation = Install
Operation = Remove
Type = Package
Target = *
[Action]
Description = Cleaning pacman cache...
When = PostTransaction
Exec = /usr/bin/paccache -rk3
```

系统会在每次安装升级卸载以后执行 `/usr/bin/paccache -rk3` 删除包的历史缓存，仅保留最近的3个版本。