问题
I am trying to add JAVA_HOME system-wide and also add JAVA_HOME/bin to PATH (Ubuntu 12.04). If I add the following 2 lines at the end of /etc/environment, I cannot login anymore afterwards. If I add the 2 lines to /etc/profile everything works. Wheres the problem?
export JAVA_HOME="/usr/lib/jvm/java-7-oracle"
export PATH="$PATH:$JAVA_HOME/bin"
There is already the following line in /etc/environment (line 1):
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
回答1:
Just write
JAVA_HOME="/usr/lib/jvm/java-7-oracle"
on your /etc/environment, without the "export"
回答2:
/etc/environment is supposed to contain a set of environment variables given as key=value pairs. It is not a shell script, so you can't use shell commands such as export in it.
来源：https://stackoverflow.com/questions/14183934/how-to-properly-set-java-home-in-etc-environment