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• .

CentOS 7: 

yum localinstall ./oracle-database-preinstall-18c-1.0-1.el7.x86_64.rpm

...

Dependencies Resolved

 Package Arch Version Repository Size

Installing:
 oracle-database-preinstall-18c x86_64 1.0-1.el7 /oracle-database-preinstall-18c-1.0-1.el7.x86_64 55 k

Installing for dependencies:
 GeoIP                               libnfsidmap
 bind-libs                           libpath_utils
 bind-libs-lite                      libref_array
 bind-license                        libstdc++-devel
 bind-utils                          libtirpc
 compat-libcap1                      libverto-libevent
 compat-libstdc++-33                 lm_sensors-libs
 geoipupdate                         net-tools
 gssproxy                            nfs-utils
 keyutils                            quota
 ksh                                 quota-nls
 libaio-devel                        rpcbind
 libbasicobjects                     smartmontools
 libcollection                       sysstat
 libevent                            tcp_wrappers
 libini_config                       unzip

Transaction Summary

Install 1 Package (+32 Dependent packages)

Total size: 8.6 M
Total download size: 8.5 M
Installed size: 28 M


... (rtfm) ...

cat > /etc/sysctl.d/97-oracle-database-sysctl.conf

/sbin/sysctl --system

/etc/init.d/oracle-xe-18c configure

https://docs.oracle.com/en/database/oracle/oracle-database/18/xeinl/procedure-installing-oracle-database-xe.html
.
.

 1.2.2 Additional Components
 
 The following development platforms are not included with Oracle Database XE.
 You can download them separately and use them with XE
 
 Oracle SQL Developer
 Oracle Application Express (APEX)
 Oracle Developer Tools for Visual Studio
 Oracle REST Data Services (ORDS)