Install ngxtop

sudo apt-get install python-pip
pip install ngxtop

Check log

ngxtop --no-follow -l /var/log/nginx/access.log
ngxtop --no-follow -l /var/log/nginx/access.log -i 'status >= 400'

Useful command

pip -V
pip show ngxtop

Reference

• https://github.com/lebinh/ngxtop
• http://hatemegalaxy.blogspot.hk/2015/12/nginx-1-ngxtop-how-to-install-and-use.html
• http://xmodulo.com/monitor-nginx-web-server-command-line-real-time.html