at first, you have to use ssh, not cpanel
here is "quick" manual
wget https://bitcoin.org/bin/bitcoin-core-0.16.0/bitcoin-0.16.0-x86_64-linux-gnu.tar.gz
wget https://bitcoin.org/bin/bitcoin-core-0.16.0/SHA256SUMS.asc
wget https://bitcoin.org/laanwj-releases.asc
gpg --import laanwj-releases.asc
gpg < SHA256SUMS.asc | sha256sum -c
tar -zxvf bitcoin-0.16.0-x86_64-linux-gnu.tar.gz
sudo install -m 0755 -o root -g root -t /usr/local/bin bitcoin-0.16.0/bin/*
then, you have to create directory for bitcoin and config
mkdir ~/.bitcoin
vi ~/.bitcoin/bitcoin.conf
use your preferred settings for bitcoin.conf. then, just run bitcoin core as daemon
bitcoind -daemon
thats all