The difference between/etc/profile and/ETC/PROFILE.D under the Linux environment

the difference between/etc/profile and/ETC/PROFILE.D under the Linux environment

Difference:

1. Two files are set environment variable file,/etc/profile is a permanent environment variable, is a global variable,/etc/profile.d/set all users to take effect

2./etc/profile.d/than/etc/ Profile good maintenance, do not want to what variables directly delete/etc/profile.d/under the corresponding shell script can, not like/etc/profile need to change this file

Each user in CentOS has to specify their own environment variables, which is more troublesome, so how to configure an environment variable, all users can use it?

The following is an example of JDK installation

VI /etc/profile.d/java.sh

in the new java.sh, enter the following:

#set Java Environment

java_home=/var/mysoft/jdk1.7.0_80

Path=$java_home/bin:$path

Export Java_home PATH

Save exit and assign permissions to java.sh: chmod 755/etc/profile.d/java.sh

The difference between/etc/profile and/ETC/PROFILE.D under the Linux environment