title: Eclipse: How to install a plugin manually?
body: <p>In one of my production environment, we have download restrictions so we have to download Eclipse plugin jar/zip file externally and then copy back to internal network and do the installation manually. Plugins to install are TestNG, C++ CDT etc.</p>
  
  <p>Would appreciate step-by-step instructions to perform the above task and would this manually installation have the same outcome as if we do it from Eclipse install new software option like for example- automatically creating menu option for TestNG etc.?</p>