title: How to execute 'coffee' command after installation?
body: <p>I installed coffee-script as per directions.  </p>
  
  <pre><code>$ npm install http://github.com/jashkenas/coffee-script/tarball/master
  npm http GET http://github.com/jashkenas/coffee-script/tarball/master   
  npm http 200 http://github.com/jashkenas/coffee-script/tarball/master
  npm http GET https://registry.npmjs.org/mkdirp
  npm http 200 https://registry.npmjs.org/mkdirp
  npm WARN package.json cookie-signature@1.0.0 No repository field.
  npm WARN package.json fresh@0.1.0 No repository field.
  npm WARN package.json methods@0.0.1 No repository field.
  npm WARN package.json range-parser@0.0.4 No repository field.
  npm WARN package.json send@0.1.0 No repository field.
  npm WARN package.json ms@0.1.0 No repository field.
  npm WARN package.json pause@0.0.1 No repository field.
  npm WARN package.json bytes@0.2.0 No repository field.
  npm WARN package.json formidable@1.0.11 No repository field.
  npm WARN package.json css@1.0.8 No repository field.
  npm WARN package.json uglify-js@2.2.5 'repositories' (plural) Not supported.
  npm WARN package.json Please pick one as the 'repository' field
  npm WARN package.json walk@2.2.1 No repository field.   
  npm WARN package.json css-parse@1.0.4 No repository field.
  npm WARN package.json css-stringify@1.0.5 No repository field.
  coffee-script@1.6.3 node_modules/coffee-script
  └── mkdirp@0.3.5
  </code></pre>
  
  <p>yet when i execute 'coffee' command i get </p>
  
  <pre><code>$ coffee
  -bash: coffee: command not found
  </code></pre>
  
  <p>What am i doing wrong?</p>
  
  <p>PS: i am doing this on Mac Terminal</p>
  
  <p>EDIT: - </p>
  
  <p>Same problem is occurs when i install <code>nodemon</code> the npm install takes place similar to above. But when i input a <code>nodemon</code> command on <code>$</code> prompt it says <code>-bash: nodemon: command not found</code></p>