Chapter 15. Shells and command-line tools

In RHEL 8, locales and translations are no longer provided by the single glibc-common package. Instead, every locale and language is available in a glibc-langpack-CODE package. Additionally, not all locales are installed by default, only these selected in the installer. Users must install all further locale packages that they need separately.

The meta-packages which install extra add-on packages containing translations, dictionaries and locales for every package installed on the system are called langpacks.

For more information see Using langpacks.

In Red Hat Enterprise Linux (RHEL) 8, the useradd and groupadd commands does not allow you to use user and group names consisting purely of numeric characters. The reason for not allowing such names is that this can confuse tools that work with user and group names and user and group ids, which are numbers.

See more information about Adding a new user from the command line.

Red Hat Enterprise Linux (RHEL) 7 used the nobody user and group pair with the ID of 99 and the nfsnobody user and group pair with the ID of 65534, which is also the default kernel overflow ID.

In RHEL 8, both of these pair have been merged into the nobody user and group pair, which uses the ID of 65534. The nfsnobody pair is not created in RHEL 8.

This change reduces the confusion about files that are owned by nobody but are not related to NFS.

RHEL 8 provides the following version control systems:

Note that the Concurrent Versions System (CVS) and Revision Control System (RCS), available in RHEL 7, are not distributed with RHEL 8.

The packages used in crontab entries now use systemd timers. Run the following commands to find packages with systemd timer entries:

repoquery --qf %{name} -f '/usr/lib/systemd/system/*.timer'

$ repoquery --qf %{name} -f '/usr/lib/systemd/system/*.timer'

repoquery --qf %{name} -f '/etc/cron./'

$ repoquery --qf %{name} -f '/etc/cron./'