yum install openjdk-8-jdk -y

mkdir /apps
cd /apps

wget https://download.sonatype.com/nexus/3/latest-unix.tar.gz

上传文件 nexus-3.30.1-01-unix.tar.gz

tar xvf nexus-3.30.1-01-unix.tar.gz
ln -sv /apps/nexus-3.30.1-01 /apps/nexus

vim /lib/systemd/system/nexus.service
[Unit]
Description=nexus service
After=network.target

[Service]
Type=forking
LimitNOFILE=65536
ExecStart=/apps/nexus/bin/nexus start
ExecStop=/apps/nexus/bin/nexus stop
User=root
Restart=on-abort
TimeoutSec=600

[Install]
WantedBy=multi-user.target