Install latest node_exporter in ubuntu with one command

install_node_exporter.sh

wget https://github.com/prometheus/node_exporter/releases/download/v1.5.0/node_exporter-1.5.0.linux-amd64.tar.gz

tar xvzf node_exporter-*.tar.gz

mv node_exporter-*/node_exporter /usr/local/bin/

# Create a node_exporter user
useradd --no-create-home --shell /bin/false node_exporter

# Set the ownership of the node_exporter binary to the node_exporter user
chown node_exporter:node_exporter /usr/local/bin/node_exporter

# Create a node_exporter service file
echo "[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target

[Service]
User=node_exporter
Group=node_exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter

[Install]
WantedBy=multi-user.target" > /etc/systemd/system/node_exporter.service

# Reload the systemctl daemon
systemctl daemon-reload

# Enable the node_exporter service to start on boot
systemctl enable node_exporter

# Start the node_exporter service
systemctl start node_exporter

# See the status of the node_exporter service
systemctl status node_exporter

One liner to install in ubuntu:
wget https://gist.githubusercontent.com/mehdi89/9b6fb4811ae057292e5b1410a870b491/raw/install_node_exporter.sh && sudo chmod +x install_node_exporter.sh && sudo ./install_node_exporter.sh