Document URL: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_for_real_time/8/html-single/installing_rhel_8_for_real_time Section Number and Name: 1.2. Installing RHEL for Real-Time using yum Describe the issue: In section Procedure "2.Install the RHEL for Real Time package group" has this command: # groupinstall RT and below it this command: # * install tuna* are missing `dnf` program name. Suggestions for improvement: Change to: # dnf groupinstall RT and # dnf * install tuna* Additional information: I'm viewing the page in Firefox 113.0.1 on Fedora 38 KDE.