查看区块同步高度（需要区块同步完成才可以）
./omnicore-cli -rpcconnect=127.0.0.1 -rpcuser=root -rpcpassword=1qaz@WSX -rpcport=18335 getblockcount
echo "export PATH=\$PATH:/usr/local/openresty/nginx/sbin:/usr/local/openresty/bin" > /etc/profile.d/openresty.sh
source /etc/profile.d/openresty.sh
多线程下载
axel -n 10 -o /usr/src http://apache.claz.org/zookeeper/zookeeper-3.4.11/zookeeper-3.4.11.tar.gz
https://bitcoincore.org/bin/bitcoin-core-0.15.1/bitcoin-0.15.1-x86_64-linux-gnu.tar.gz
wget https://download.bitcoinabc.org/0.16.2/linux/bitcoin-abc-0.16.2-x86_64-linux-gnu.tar.gz
https://luke.dashjr.org/programs/bitcoin/files/bitcoind/0.15.1/bitcoin-0.15.1-x86_64-linux-gnu.tar.gz