Oracle Clients

Ubuntu

Download

oracle-instantclient12.2-basiclite-12.2.0.1.0-1.x86_64.rpm
oracle-instantclient12.2-sqlplus-12.2.0.1.0-1.x86_64.rpm

from Oracle Instant Client download page

$ sudo apt install alien
$ sudo apt install libaio1
$ sudo alien -i oracle-instantclient12.2-basiclite-12.2.0.1.0-1.x86_64.rpm 
$ sudo alien -i oracle-instantclient12.2-sqlplus-12.2.0.1.0-1.x86_64.rpm
$ for i in $(dpkg -L $(dpkg -l oracle-instantclient\* | awk '$1=="ii"{print $2;}') | grep .so )
do
  BASENAME=${i##*/}
  sudo update-alternatives --install /usr/lib/${BASENAME} ${BASENAME} ${i} 10
done