wget http://get.geo.opera.com/pub/opera-developer/version/linux/opera-developer_version_amd64.deb
e.g. wget http://get.geo.opera.com/pub/opera-developer/24.0.1543.0/linux/opera-developer_24.0.1543.0_amd64.deb
Check http://packages.ubuntu.com/trusty-updates/libssl1.0.0
wget http://example.com/somewhere
rpmbuild -bb opera-developer.spec
yum localinstall opera-developer-*.x86_64.rpm
Just click icon or
$ /usr/bin/opera-developer
- Fedora20