Unfortunately, these early previews are no longer distributed as general gzip archives to work on any Linux/Mac distro, there's only a RedHat RPM installer for the Linux platform. Thankfully, this is easy to fix using the utility we known and love as Alien.
Conversion of RPM to DEBStart by ensuring you have the Alien utility installed.
~$ sudo apt-get install alien
Then after downloading the RPM package from Oracle, run it through the alien utility.
~$ sudo alien sqldeveloper-18.104.22.168.84-1.noarch.rpm Warning: Skipping conversion of scripts in package sqldeveloper: postinst Warning: Use the --scripts parameter to include the scripts. sqldeveloper_22.214.171.124.84-2_all.deb generated
Great, now we have a Debian package. Let's continue to install this one.
~$ sudo dpkg -i sqldeveloper_126.96.36.199.84-2_all.deb Selecting previously unselected package sqldeveloper. (Reading database ... 571042 files and directories currently installed.) Unpacking sqldeveloper (from sqldeveloper_188.8.131.52.84-2_all.deb) ... Setting up sqldeveloper (184.108.40.206.84-2) ... /opt/sqldeveloper/sqldeveloper.sh
That was it, we have now installed the latest early release of SQLDeveloper no thanks to Oracle.