DNF Package Manager Part #3

DNF Package Manager

DNF Package Manager Part #2

Install dnf update or alias (up) check is list available.

 ~]# dnf update
...
===============================================================================
 Package                       Arch   Version                   Repo       Size
===============================================================================
Installing:
 kernel                        x86_64 5.14.0-239.el9            baseos    3.0 M
Upgrading:
 NetworkManager                x86_64 1:1.41.8-1.el9            baseos    2.2 M
 NetworkManager-libnm          x86_64 1:1.41.8-1.el9            baseos    1.8 M
...
Transaction Summary
===============================================================================
Install   12 Packages
Upgrade  204 Packages

Check-update dnf upgrade package_name… or alias (dg) command can be used to see which installed packages on your system have new versions.

~]# dnf upgrade zsh
...
===============================================================================
 Package        Architecture      Version               Repository         Size
===============================================================================
Upgrading:
 zsh            x86_64            5.8-9.el9             baseos            3.2 M
Transaction Summary
===============================================================================
Upgrade  n Package

Downgrade software dnf downgrade package_name… or alias (dg) to previous version reverts to the previous version of a package.

~]# dnf downgrade zsh
...
===============================================================================
 Package        Architecture      Version               Repository         Size
===============================================================================
Downgrading:
 zsh            x86_64            5.8-7.el9             baseos            3.2 M
Transaction Summary
===============================================================================
Downgrade  1 Package

List of options dnf help or — help -h -?

~]# dnf help
usage: dnf [options] COMMAND
...

Combined dnf list installed | grep package_name… with the grep command, you can search whether a particular package is installed or not, as follows.

~]# dnf list installed | grep zsh
zsh.x86_64                            5.8-9.el9                   @baseos

Removes the specified packages dnf remove package_name… or alias (rm) from the system along with any packages depending on the packages being removed.

~]# dnf remove zsh
...
===============================================================================
 Package        Architecture      Version              Repository          Size
===============================================================================
Removing:
 zsh            x86_64            5.8-9.el9            @baseos            7.6 M
Transaction Summary
===============================================================================
Remove  1 Package

Reinstall package dnf reinstall package_name… or alias (rei) if an error occurs in installation time.

~]# dnf reinstall zsh
...
===============================================================================
 Package        Architecture      Version               Repository         Size
===============================================================================
Reinstalling:
 zsh            x86_64            5.8-9.el9             baseos            3.2 M
Transaction Summary
===============================================================================

dnf alias Create custom alias location of /etc/dnf/aliases.d/USER.conf dir.

 ~]# dnf alias
No aliases defined.
 ~]# dnf alias add sil=remove
Aliases added: sil
 ~]# dnf sil zsh
...
===============================================================================
 Package        Architecture      Version              Repository          Size
===============================================================================
Removing:
 zsh            x86_64            5.8-9.el9            @baseos            7.6 M
Transaction Summary
===============================================================================
Remove  1 Package

dnf config-manager --add-repo repository_url … where repository_url is a link to the .repo file.

~]# dnf config-manager --add-repo https://example.com/repo
Adding repo from: https://example.com/repo

To display a list of all transactions, dnf history list start_id…end_id or history list or history undo and redo id.

~]# dnf history list 1..4
...
ID     | Login user               | Date a | Action | Altere
-------------------------------------------------------------------------------
     4 | root <root>              | 2015-04-16 18:35 | Erase          |    1
     3 | root <root>              | 2015-04-16 18:34 | Install        |    1
     2 | root <root>              | 2015-04-16 17:53 | Install        |    1
     1 | System <unset>           | 2015-04-16 14:14 | Install        |  668 E

Conclusion

The dnf command on Linux was the subject of this article. I hope this article was helpful in introducing you to dnf and that you will be able to use the command easily moving forward.