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I have been trying to set environment variables that would be saved upon reboot, but without success.
When I set variables using the export or setenv command, as root or any other user, it gets saved on the session until reboot. After reboot, the variables are lost.
In particular, I need to set $JAVA_HOME.
So I do like this
but nothing is working as I indicated.
What am I doing wrong?
Depending on your shell, there usually has to be a .<shellnamehere>rc file where you can store these variables that you want persisting across logout and reboot events. .bashrc is where you do it if your shell choice is bash
EDIT: in the terminal, run command
env | grep SHELL
if you see SHELL=bash then, run this command:
echo 'export JAVA_HOME="/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.71-2.b15.el7_2.x86_64"' >> $HOME/.bashrc
this last command have some assumptions. If your SHELL doesn't come up as bash come back here and report what you get. After a logout and login back if you don't see your variable already set, again come back and report what error messages you see, if any.
If it is about setting JAVA_HOME system-wide, /etc/profile.d/ would be a good choice.
echo export JAVA_HOME="put path to java home here">/etc/profile.d/javaenv.sh
chmod 0755 /etc/profile.d/javaenv.sh
on your next logon you'll have it
.bashrcand methods that only work for a single user. This question requires a system-wide method such as the one suggested by @tagwint