Managing software on Rocky Linux is easy with dnf. This is just like using YUM on Fedora.
The dnf command in Fedora Linux is used as a package manager to install, update, and remove software packages. The following is a list of common options used with the dnf command:
To find a certain package, use this option.
[root@localhost Documents]# dnf search wordpress Last metadata expiration check: 1:31:49 ago on Mon 06 Feb 2023 14:14:47. ============================================================================================================= Name Exactly Matched: wordpress ============================================================================================================== wordpress.noarch : Blog tool and publishing platform |
This has found the WordPress package I was looking for.
Then it is very easy to install the desired package.
[root@localhost Documents]# dnf install wordpress Last metadata expiration check: 1:40:41 ago on Mon 06 Feb 2023 14:14:47. Dependencies resolved. ============================================================================================================================================================================================================================================================ Package Architecture Version Repository Size ============================================================================================================================================================================================================================================================ Installing: wordpress noarch 6.1.1-1.el9 epel 15 M Installing dependencies: apr x86_64 1.7.0-11.el9 appstream 123 k apr-util x86_64 1.6.1-20.el9 appstream 94 k apr-util-bdb x86_64 1.6.1-20.el9 appstream 13 k httpd x86_64 2.4.53-7.el9 appstream 48 k httpd-core x86_64 2.4.53-7.el9 appstream 1.4 M httpd-filesystem noarch 2.4.53-7.el9 appstream 15 k httpd-tools x86_64 2.4.53-7.el9 appstream 82 k libsodium x86_64 1.0.18-8.el9 epel 161 k libzip x86_64 1.7.3-7.el9 appstream 62 k nginx-filesystem noarch 1:1.20.1-13.el9 appstream 11 k php-common x86_64 8.0.20-3.el9 appstream 665 k php-fpm x86_64 8.0.20-3.el9 appstream 1.6 M php-gd x86_64 8.0.20-3.el9 appstream 43 k php-intl x86_64 8.0.20-3.el9 appstream 151 k php-mbstring x86_64 8.0.20-3.el9 appstream 471 k php-mysqlnd x86_64 8.0.20-3.el9 appstream 152 k php-pdo x86_64 8.0.20-3.el9 appstream 84 k php-pecl-zip x86_64 1.19.2-6.el9 appstream 54 k php-sodium x86_64 8.0.20-1.el9 epel 34 k php-xml x86_64 8.0.20-3.el9 appstream 133 k rocky-logos-httpd noarch 90.13-1.el9 appstream 24 k Installing weak dependencies: apr-util-openssl x86_64 1.6.1-20.el9 appstream 15 k mod_http2 x86_64 1.15.19-2.el9 appstream 149 k mod_lua x86_64 2.4.53-7.el9 appstream 62 k Transaction Summary ============================================================================================================================================================================================================================================================ Install 25 Packages Total download size: 21 M Installed size: 86 M Is this ok [y/N]: |
It is also possible to retrieve the command history for dnf. Just run dnf like this.
[root@localhost Documents]# dnf history ID | Command line | Date and time | Action(s) | Altered ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 9 | install wordpress | 2023-02-06 15:56 | Install | 25 < 8 | | 2023-02-06 14:35 | Reinstall | 1 ># 7 | install snapd | 2023-02-06 14:15 | Install | 3 < 6 | -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm | 2023-02-06 14:14 | Install | 1 >E 5 | install gimp | 2023-02-06 14:01 | Install | 21 4 | install elrepo-release | 2023-02-06 13:54 | Install | 1 3 | install mc | 2023-02-06 13:50 | Install | 1 2 | update | 2023-02-06 13:41 | I, U | 78 E< 1 | |
Update all packages on the system to match the online package repositories.
[root@localhost Documents]# dnf distro-sync Last metadata expiration check: 1:47:37 ago on Mon 06 Feb 2023 14:14:47. Dependencies resolved. ============================================================================================================================================================================================================================================================ Package Architecture Version Repository Size ============================================================================================================================================================================================================================================================ Upgrading: elrepo-release noarch 9.1-1.el9.elrepo elrepo 12 k Transaction Summary ============================================================================================================================================================================================================================================================ Upgrade 1 Package Total download size: 12 k Is this ok [y/N]: |
Use the dnf info option to find out detailed information about a certain package available for installation.
[root@localhost Documents]# dnf info vim-common-2:8.2.2637-16.el9_0.3.x86_64 Last metadata expiration check: 1:51:02 ago on Mon 06 Feb 2023 14:14:47. Installed Packages Name : vim-common Epoch : 2 Version : 8.2.2637 Release : 16.el9_0.3 Architecture : x86_64 Size : 30 M Source : vim-8.2.2637-16.el9_0.3.src.rpm Repository : @System From repo : AppStream Summary : The common files needed by any version of the VIM editor URL : http://www.vim.org/ License : Vim and MIT Description : VIM (VIsual editor iMproved) is an updated and improved version of the : vi editor. Vi was the first real screen-based editor for UNIX, and is : still very popular. VIM improves on vi by adding new features: : multiple windows, multi-level undo, block highlighting and more. The : vim-common package contains files which every VIM binary will need in : order to run. : : If you are installing vim-enhanced or vim-X11, you'll also need : to install the vim-common package. |
To display a list of all configured software repositories on your Rocky Linux system, use the repolist option.
[john@localhost Documents]$ dnf repolist repo id repo name appstream Rocky Linux 9 - AppStream baseos Rocky Linux 9 - BaseOS elrepo ELRepo.org Community Enterprise Linux Repository - el9 epel Extra Packages for Enterprise Linux 9 - x86_64 extras Rocky Linux 9 - Extras |
This makes dnf very easy to use, once you know how to install and manage software, it is a treat to use.
Print a List of all configured package repositories using Python.
>>> import subprocess >>> output = subprocess.check_output(['dnf', 'repolist']).decode() >>> print (output) repo id repo name appstream Rocky Linux 9 - AppStream baseos Rocky Linux 9 - BaseOS elrepo ELRepo.org Community Enterprise Linux Repository - el9 epel Extra Packages for Enterprise Linux 9 - x86_64 extras Rocky Linux 9 - Extras |
That could be very useful. It is a way to run a Linux command in Python and then print the output.
Like this.
>>> output = subprocess.check_output(['ls', '-hula']).decode() >>> print (output) total 32K drwx------. 16 john john 4.0K Feb 6 15:45 . drwxr-xr-x. 3 root root 18 Feb 6 14:39 .. -rw-------. 1 john john 264 Feb 6 16:39 .bash_history -rw-r--r--. 1 john john 18 Nov 2 03:47 .bash_logout -rw-r--r--. 1 john john 141 Feb 6 13:30 .bash_profile -rw-r--r--. 1 john john 492 Feb 6 13:30 .bashrc drwxr-xr-x. 19 john john 4.0K Feb 6 13:30 .cache drwx------. 17 john john 4.0K Feb 6 13:30 .config drwxr-xr-x. 2 john john 6 Feb 6 14:03 Desktop drwxr-xr-x. 2 john john 99 Feb 6 16:35 Documents drwxr-xr-x. 2 john john 6 Feb 6 14:03 Downloads drwx------. 4 john john 32 Feb 6 13:30 .local drwxr-xr-x. 5 john john 54 Oct 30 11:36 .mozilla drwxr-xr-x. 2 john john 6 Feb 6 14:03 Music drwxr-xr-x. 2 john john 101 Feb 6 14:04 Pictures drwxr-xr-x. 2 john john 6 Feb 6 14:06 Public drwx------. 4 john john 33 Feb 6 16:31 snap drwx------. 2 john john 25 Feb 6 15:41 .ssh drwxr-xr-x. 2 john john 6 Feb 6 14:06 Templates drwxr-xr-x. 2 john john 6 Feb 6 14:03 Videos -rw-r--r--. 1 john john 658 May 15 2022 .zshrc |