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Discovering which package installed a specific file on your Linux system is invaluable when you need to restore default configurations after unintended edits. In this guide, we’ll explore DNF-based commands to:
  • Find the package providing a file or command
  • List all files in a package
  • Filter package file listings
These examples assume a DNF-based distribution (Fedora, RHEL, CentOS Stream). On older systems using yum, substitute yum provides and yum repoquery.

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Table of Common DNF Queries

CommandPurposeExample
dnf provides <file>Identify package owning a filednf provides /etc/anacrontab
dnf provides <command>Find package that supplies a CLI commanddnf provides docker
dnf repoquery --list <pkg>List every file in any packagednf repoquery --list nginx
dnf repoquery --list <pkg> | grep <pattern>Filter listed files by name or extension`…grep ‘.conf’`

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1. Find Which Package Owns a File

Suppose you’ve modified /etc/anacrontab and want to revert it to the distribution’s original version. Use: 
$ dnf provides /etc/anacrontab
cronie-anacron-1.5.2-4.el8.x86_64 : Utility for running regular jobs
Repo        : baseos
Matched from:
Filename    : /etc/anacrontab

cronie-anacron-1.5.2-6.el8.x86_64 : Utility for running regular jobs
Repo        : @system
Matched from:
Filename    : /etc/anacrontab
The output shows cronie-anacron as the provider. To restore: 
$ sudo rm /etc/anacrontab
$ sudo dnf install --refresh cronie-anacron
After reinstalling, the original /etc/anacrontab is back in place.
Removing system files can affect service behavior. Always backup configurations before deletion.

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2. Discover Which Package Supplies a Command

Want the docker CLI but unsure which package includes it? Run: 
$ dnf provides docker
podman-docker-3.1.0-0.13.module_el8.5.0+733+9bb5dffa.noarch : Emulate Docker CLI
Repo        : appstream
Matched from:
Provide     : docker = 3.1.0-0.13.module_el8.5.0+733+9bb5dffa

podman-docker-3.3.0-0.17.module_el8.5.0+874+6db8bee3.noarch : Emulate Docker CLI
Repo        : appstream
Matched from:
Provide     : docker = 3.3.0-0.17.module_el8.5.0+874+6db8bee3
Here, podman-docker emulates the Docker CLI, so install it to use docker.

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3. List All Files in a Package

To inspect every file a package ships—even if it isn’t installed locally—use: 
$ dnf repoquery --list nginx
/etc/logrotate.d/nginx
/etc/nginx/fastcgi.conf
/etc/nginx/fastcgi.conf.default
...
/usr/lib/.build-id
This complete list helps you identify configuration files, binaries, libraries, and other assets.

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4. Filter the File Listing

Narrow down to specific file types (e.g., configuration files) by piping to grep: 
$ dnf repoquery --list nginx | grep '\.conf'
/etc/nginx/fastcgi.conf
/etc/nginx/fastcgi.conf.default
/etc/nginx/nginx.conf
/etc/nginx/nginx.conf.default
Use any regex pattern to quickly locate files of interest.

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Further Reading

Practice these commands to become confident in managing package-owned files and restoring default configurations on your DNF-based Linux system.

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Practice Lab