Install Node.js 42016/07/03

	Install ServerSide JavaScript Environment Node.js 4 (LTS).
[1]	It's possible to install from CentOS SCLo Software Collections. It's OK to install it even if another version of Node.js is already installed because 4.x is located on another PATH.

# install from SCLo

[root@dlp ~]#

yum --enablerepo=centos-sclo-rh -y install rh-nodejs4

[2]	Packages from Software Collections are installed uder the /opt directory. To use it, Load environment variables like follows.

# load environment variables

[root@dlp ~]#

scl enable rh-nodejs4 bash

[root@dlp ~]#

node -v

v4.4.2

[root@dlp ~]#

which node

/opt/rh/rh-nodejs4/root/usr/bin/node

[3]	If you'd like to enable Node.js 4 automatically at login time, configure like follows.

[root@dlp ~]#

vi /etc/profile.d/rh-nodejs4.sh

# create new

#!/bin/bash

source /opt/rh/rh-nodejs4/enable
export X_SCLS="`scl enable rh-nodejs4 'echo $X_SCLS'`"

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