These instructions are for installing the Ravencoin wallet on Fedeora, but the instructions should work for CentOS, and be similar for Debian/Ubuntu Distros.

The Linux readme can be found here.

Install dependencies

sudo dnf -y install zeromq libevent boost libdb4 miniupnpc libdb4-cxx protobuf-lite-devel

Download the binaries.  Manually here or with wget.  Latest files should be on their github https://github.com/RavenProject/Ravencoin/releases/latest

wget http://www.incredigeek.com/home/downloads/Ravencoin/fedora27-x86_64.tar.gz

Note if you don’t have wget installed, you can install it by running

sudo dnf install -y wget

Unzip the downloaded files

tar zxvf fedora27-x86_64.tar.gz

Change to the new directory

cd fedora

Launch the Raven Wallet GUI

./raven-qt