Setting system wide shell options

• By default /etc/profile file act as a system-wide profile file for the Bash shell.
• You can force setting using this file for all user. However, it is recommended that you use /etc/profile.d file under CentOS / Fedora / Redhat Enterprise Linux. For all other distribution edit /etc/profile file.
• Task: Setting up a JAVA_HOME and PATH settings for all user.
  • Create /etc/profile.d/java.sh file, enter:

#!/bin/bash
export JAVA_HOME=/opt/jdk1.5.0_12
export PATH=$PATH:$JAVA_HOME/bin

Save and close the file. Setup executable permission:

chmod +x /etc/profile.d/java.sh