linux(ubuntu)安装nodejs配置/etc/profile环境变量遇到问题

    # /etc/profile: system-wide .profile file for the Bourne shell (sh(1))

# and Bourne compatible shells (bash(1), ksh(1), ash(1), ...).



if [ "$PS1" ]; then

  if [ "$BASH" ] && [ "$BASH" != "/bin/sh" ]; then

    # The file bash.bashrc already sets the default PS1.

    # PS1='\h:\w\$ '

    if [ -f /etc/bash.bashrc ]; then

      . /etc/bash.bashrc

    fi

  else

    if [ "`id -u`" -eq 0 ]; then

      PS1='# '

    else

      PS1='$ '

    fi

  fi

fi



# The default umask is now handled by pam_umask.

# See pam_umask(8) and /etc/login.defs.



if [ -d /etc/profile.d ]; then

  for i in /etc/profile.d/*.sh; do

    if [ -r $i ]; then

      . $i

    fi

  done

  unset i

fi



export NODE_HOME=/home/jingxiao/install/node-v0.12.0-linux-x64

export PATH=$PATH:$NODE_HOME/bin

export NODE_PATH=$NODE_HOME/lib/node_modules

    source /etc/profile