title: PM2 command not found
body: <p>I installed node.js and npm to my centOS 7 server. But i have problems with pm2.
  Actually real problem is i don't have experiences in linux and i don't know how to change path.
  Here is folder structure.</p>
  
  <pre><code>* bin
  * code
  * error_docs
  * httpdocs
  * lib64
  * logs
  * tmp
  * var
  * chat(my node.js folder)
      * node_modules
          * pm2
          * sockjs
      * server.js
  * dev
  * etc
  * lib
  * local
  * sbin
  * usr
  </code></pre>
  
  <p>I entered folder by typing <code>cd chat</code> and installed pm2 with <code>npm install pm2</code>.</p>
  
  <p>After that I tried use pm2 for my server.js by typing <code>pm2 server.js</code> server returns "pm2 command not found". I can use node.js without any problem but pm2 not working.</p>
  
  <p>How can i solve this?</p>