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Linux软件包管理(一)

  • 2026-01-23 07:38:29
Linux软件包管理(一)
基于Red Hat系统的软件包管理工具有yum，dnf（yum的升级版），两种前端工具全部基于命令行工具rpm，重点介绍dnf工具用法：
  1. 列出已安装的软件包
dnf list installed
2.查找特定软件包的详细信息
dnf list xterm
3.找出某个文件是由哪个软件包安装
dnf provides file_name
4.使用dnf安装软件
dnf install package_name
5.使用dnf升级软件
dnf list upgrades——查看已安装软件包的所有可用更新dnf upgrade package_name——升级某个特定的软件包dnf upgrade——升级更新列表中的所有软件包
dnf upgrade-minimal——将软件包升级至最新的bug修复版或安全补丁版，而不是最新的最高版本
6.使用dnf卸载软件
dnf remove package_name
7.处理损坏的依赖关系
有时在安装多个软件包时，一个软件包的依赖关系可能会被另一个软件包搞乱，即依赖关系损坏。
dnf clean alldnf upgrade
通过以上两步清理放错位置的文件即可；如果无法解决，则尝试采用命令
dnf repoquery --deplist package_name
找出软件包的所有依赖关系及哪些软件包提供了这种依赖，随后再自行安装依赖即可。
8.查看当前拉取软件的仓库
dnf repolist
9.dnf仓库定义及配置文件
 配置文件：/etc/dnf/dnf.conf 仓库站点：/etc/yum.repos.d
优秀的仓库站点会列出使用该仓库所需的全部步骤，还会提供RPM文件，供用户下载安装。
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  1. 请求信息 : 2026-02-08 22:13:48 HTTP/2.0 GET : https://f.mffb.com.cn/a/463893.html
  2. 运行时间 : 0.221748s [ 吞吐率：4.51req/s ] 内存消耗：4,475.48kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
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  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000354s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000625s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.002520s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000488s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000500s ]
  6. SELECT * FROM `set` [ RunTime:0.012255s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000714s ]
  8. SELECT * FROM `article` WHERE `id` = 463893 LIMIT 1 [ RunTime:0.010943s ]
  9. UPDATE `article` SET `lasttime` = 1770560028 WHERE `id` = 463893 [ RunTime:0.001616s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000305s ]
  11. SELECT * FROM `article` WHERE `id` < 463893 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002741s ]
  12. SELECT * FROM `article` WHERE `id` > 463893 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001659s ]
  13. SELECT * FROM `article` WHERE `id` < 463893 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.074857s ]
  14. SELECT * FROM `article` WHERE `id` < 463893 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.033154s ]
  15. SELECT * FROM `article` WHERE `id` < 463893 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.009069s ]
0.223239s