dnf

Overview

The dnf (Dandified Yum) command is the next-generation package manager for RPM-based Linux distributions. It succeeds yum with improved dependency resolution and performance.

Syntax

dnf [options] command [package...]

Common Commands

Command Description
install Install packages
update Update packages
remove Remove packages
search Search packages
info Show package info
list List packages
check-update Check updates
clean Clean cache
group Group operations
history Transaction history
repolist List repositories
provides Find file provider
module Module operations
downgrade Downgrade package

Common Options

Option Description
-y Assume yes
-q Quiet mode
--nogpgcheck Skip GPG check
--enablerepo Enable repository
--disablerepo Disable repository
--exclude Exclude packages
--downloadonly Download only
--best Best package version
--allowerasing Allow erasing

Key Use Cases

  1. Package management
  2. System updates
  3. Module management
  4. Repository control
  5. System maintenance

Examples with Explanations

Example 1: Install Package

dnf install package_name

Install specific package

Example 2: Update System

dnf update

Update all packages

Example 3: Module Operations

dnf module list

List available modules

Common Usage Patterns

  1. System update:

    dnf check-update && dnf update

  2. Group install:

    dnf group install "Development Tools"

  3. Module enable:

    dnf module enable nodejs:12

Security Considerations

  1. Repository security
  2. GPG verification
  3. Root privileges
  4. Network security
  5. Version control

Additional Resources

Best Practices

  1. Regular updates
  2. Clean cache
  3. Verify packages
  4. Backup configuration
  5. Test updates

Module Management

  1. Enable/disable
  2. Install/remove
  3. Switch streams
  4. Reset modules
  5. List profiles

Troubleshooting

  1. Dependency issues
  2. Repository problems
  3. Network errors
  4. Space issues
  5. Module conflicts