update freebsd

technology/bsd/FreeBSD.md

@@ -1,16 +1,42 @@
 ---
 website: https://www.freebsd.org
 obj: os
-rev: 2024-03-01
+rev: 2024-03-27
 ---
 
 # FreeBSD
-#wip #🐇 #notnow #bsd
 FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features (using [ZFS](../linux/filesystems/ZFS.md) natively) have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
 
 ## pkg
-Pkg is the Package Manager on BSDs
-#refactor -> add pkg usage
+Pkg is the Package Manager on BSDs, offering a sophisticated set of tools for managing software installations, updates, and dependencies on FreeBSD systems.
+
+- **Repositories**: FreeBSD supports multiple package repositories, including the official FreeBSD repository and third-party repositories like FreeBSD Ports Collection or custom repositories. Users can configure repositories using `/etc/pkg/FreeBSD.conf` or by creating their own repository configurations.
+
+- **Dependency Resolution**: Pkg automatically resolves dependencies when installing or upgrading packages, ensuring that all required dependencies are installed or updated to compatible versions.
+
+- **Version Pinning**: Users can pin specific package versions to prevent automatic upgrades. This feature is useful for maintaining compatibility with specific software configurations or ensuring stability in production environments.
+
+- **Package Flags**: Pkg supports package flags to customize package installation behavior. Flags allow users to enable or disable specific features or dependencies for individual packages.
+
+- **Audit and Security**: Pkg includes features for auditing installed packages to identify vulnerabilities and security issues. Users can run `pkg audit` to check for vulnerabilities in installed packages and take appropriate actions to mitigate risks.
+
+- **Package Configuration**: Some packages require configuration during installation. Pkg provides tools to manage package configuration files, including merging changes during upgrades and managing configuration files for multiple package versions.
+
+- **Package Downgrades**: In certain scenarios, users may need to downgrade packages to previous versions. Pkg supports downgrading packages while resolving dependencies and ensuring system integrity.
+
+- **Package Locking**: Administrators can lock specific packages to prevent accidental modification or removal. Package locking is useful for critical system components or packages that should remain unchanged for stability reasons.
+
+
+### Usage
+- `pkg install <package>`: Installs the specified package and its dependencies.
+- `pkg search <term>`: Searches for packages matching the given search term.
+- `pkg update`: Updates the local package repository, ensuring access to the latest package information.
+- `pkg upgrade`: Upgrades installed packages to their latest available versions.
+- `pkg info`: Lists all installed packages on the system.
+- `pkg remove <package>`: Uninstalls the specified package from the system.
+- `pkg autoremove`: Removes orphaned packages, i.e., packages that were installed as dependencies but are no longer needed by any installed package.
+- `pkg clean`: Cleans the local package cache, freeing up disk space by removing old package files.
+- `pkg audit`: Checks installed packages for known vulnerabilities and security issues.
 
 ## mdconfig
 `mdconfig` lets you create and control memory disks.