How do I install a module globally using npm

Question

I recently installed Node js and npm module on OSX and have a problem with the settings I think   npm install  MODULE  is not installing the node js module to the default path  which is  usr local lib node modules

User · Answer

You might not have write permissions to install a node module in the global location such as  usr local lib node modules  in which case run npm install -g package as root

User · Answer

I had issues installing Express on Ubuntu   If for some reason NPM command is missing  test npm command with npm help  If not there  follow these steps - http   arnolog net post 8424207595 installing-node-js-npm-express-mongoose-on-ubuntu  If just the Express command is not working  try   sudo npm install -g express   This made everything work as I m used to with Windows7 and OSX   Hope this helps

User · Answer

If you want to install a npm module globally  make sure to use the new -g flag  for example   npm install forever -g  The general recommendations concerning npm module installation since 1 0rc  taken from blog nodejs org          If you   re installing something that you want to use in your program  using   require  whatever    then install it   locally  at the root of your   project    If you   re installing something that you want to use in your shell  on the   command line or something  install   it globally  so that its binaries   end up in your PATH environment   variable       I just recently used this recommendations and it went down pretty smoothly  I installed forever globally  since it is a command line tool  and all my application modules locally   However  if you want to use some modules globally  i e  express or mongodb   take this advice  also taken from blog nodejs org       Of course  there are some cases where   you want to do both  Coffee-script and   Express both are good examples of apps   that have a command line interface  as   well as a library  In those cases  you   can do one of the following          Install it in both places  Seriously  are you that short on disk   space  It   s fine  really  They   re tiny   JavaScript programs    Install it globally  and then npm link coffee-script or npm link express    if you   re on a platform that supports   symbolic links   Then you only need to   update the global copy to update all   the symlinks as well          The first option is the best in my   opinion  Simple  clear  explicit  The   second is really handy if you are   going to re-use the same library in a   bunch of different projects   More on   npm link in a future installment     I did not test one of those variations  but they seem to be pretty straightforward

User · Answer

On a Mac  I found the output contained the information I was looking for     gt  npm install -g karma          gt  ws 0 4 25 install  usr local share npm lib node modules karma node modules socket io node modules socket io-client node modules ws  gt   node-gyp rebuild 2 gt  builderror log      exit 0        gt  ls  usr local share npm bin karma nf   After adding  usr local share npm bin to the export PATH line in my  bash profile  saving it  and sourceing it  I was able to run      gt  karma --help   normally

User · Answer

You need to have superuser privileges     sudo npm install -g  lt package name gt

User · Answer

In Ubuntu  set path of node modules in  bashrc file     export PATH   home username node modules  bin  PATH

User · Answer

I like using a package json file in the root of your app folder   Here is one I use  nvm use v0 6 4   http   pastie org 3232212  npm install

[node.js] How do I install a module globally using npm?

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