NodeJS By Examples
NodeJS Installation on CentOS 6.5 - Compiling NodeJS from the latest source
Installation - NodeJS on Centos 6.5
1. yum list nodejs
nodejs.i686
nodejs.x86_64
2. yum install nodejs -install nodejs.x86_64
Now if we run:
#node --version
v0.10.33
But #npm --version return error. This error means that NPM is not installed and we have to install it separatelly from NodeJS.
I don't like it because in Ubuntu when we install NodeJS, NPM is installed automatically. In CentOS this is not the case.
So let's try to compile NodeJS from the source.
Compiling NodeJS from the source
0. Check Node distribution: http://nodejs.org/dist/
1. # cd /usr/src
2. Grab the latest: # wget http://nodejs.org/dist/node-latest.tar.gz
3. Untar: # tar tar zxf node-latest.tar.gz
4. # cd node-v0.10.36
5. Prepare compiler commands: # ./configure
6. Compiling with command: #make (this takes about 6 minutes to compile everything)
7. #make install This puts compiled binaries into the system path, for example /usr/bin/node so we can use #node command.
8.Installed versions and checks
#/usr/local/bin/node -v returns v0.10.36
#/usr/local/bin/npm returns 1.4.28
#/usr/local/bin/npm list is empty now
/usr/src/node-v0.10.36
└── (empty)
9. Create symbolic links
# ln -s /usr/local/bin/node /usr/bin/node
# ln -s /usr/local/bin/npm /usr/bin/npm
Now we can use simple #node and #npm short commands.
INSTALLATION DIRECTORY PATHS
NodeJS is installed into:
/usr/local/include/node/ - node API javascript library
/usr/local/bin/node - node executable binary file
NPM is installed into:
/usr/local/lib/node_modules/ - node modules
/usr/local/bin/npm -npm binary file
Now when we install module globally it will go into /usr/local/lib/node_modules/ for example # npm install -g express .
Sometimes it is needed to add environment variable:
# export NODE_PATH=/usr/local/lib/node_modules
Then chechk with command
#printenv
If you want to permanently set env variable on Centos 6.6 do this:
#vim /etc/profile.d/node.sh
export NODE_PATH=/usr/local/lib/node_modules
Now, env variable will be set after server reboot.