# Installation noob **URL:** \ **Category:** Ruby\ **Created:** [May 25, 2009, 9:32am UTC](https://www.ruby-forum.com/t/installation-noob/168738 "2009-05-25T09:32:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![soderic](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/8baadc/32.png) [@soderic](https://www.ruby-forum.com/u/soderic)\ **Post date:** [May 25, 2009, 9:32am UTC](https://www.ruby-forum.com/t/installation-noob/168738/1 "2009-05-25T09:32:30Z")
Hi all, I am attempting to get ruby and some gems up and working but am a total noob to ruby. First could someone clear up these basic questions: when using the “gem update --system” “gem install watir” the command line says gem is not recognized as an internal or external command??? where do I navigate to before I type that command? and to scrape an ajax web site (which is what I want to do) is firewatir the gem I need? Thx in advance… more questions to come ---
**Author:** ![soderic](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/8baadc/32.png) [@soderic](https://www.ruby-forum.com/u/soderic)\ **Post date:** [May 25, 2009, 10:38am UTC](https://www.ruby-forum.com/t/installation-noob/168738/2 "2009-05-25T10:38:29Z")
Eric Stevens wrote: > command line says gem is not recognized as an internal or external > command??? > where do I navigate to before I type that command? You don’t have rubygems installed - so you need to install it. The best way to do that depends on what platform you are on. (Windows? OSX? Linux? Which version?) For example: Ubuntu Linux normally would be “sudo apt-get install rubygems” ---
**Author:** ![soderic](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/8baadc/32.png) [@soderic](https://www.ruby-forum.com/u/soderic)\ **Post date:** [May 25, 2009, 4:31pm UTC](https://www.ruby-forum.com/t/installation-noob/168738/3 "2009-05-25T16:31:08Z")
The error messages implies you are using Windows. Perhaps you don’t have the Ruby/bin dir (where the gem executable is) in your PATH environment variable?