$ sudo npm install graylog2
$ sudo npm install -g graylog2

If want to update the graylog2 package execute the command as below,

$ sudo npm update graylog2

Update package globally,

$ npm install -g graylog2

Git clone:

$ sudo  git clone https://github.com/rektide/graylog2.git

$ sudo  npm install -g ./graylog2

graylog2@0.2.0 /usr/lib/node_modules/graylog2

How to remove graylog2 package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall graylog2

Basic Information of graylog2 NPM Package: