title: npm install -g ethereumjs-testrpc Not working?
body: <p><code>npm install -g ethereumjs-testrpc</code> not working it is showing error</p>
  
  <blockquote>
    <p>npm ERR! Error: EACCES: permission denied, access
    '/usr/local/lib/node_modules/ethereumjs-testrpc' npm ERR!     at Error
    (native) npm ERR!  { [Error: EACCES: permission denied, access
    '/usr/local/lib/node_modules/ethereumjs-testrpc'] npm ERR!   errno:
    -13, npm ERR!   code: 'EACCES', npm ERR!   syscall: 'access', npm ERR!   path: '/usr/local/lib/node_modules/ethereumjs-testrpc' } npm ERR!  npm
    ERR! Please try running this command again as root/Administrator.</p>
  </blockquote>
  
  <p>npm ERR! Please include the following file with any support request:
  npm ERR!     /home/user/npm-debug.log</p>