profile

export JAVA_HOME=/usr/java/jdk1.8.0_74

export PATH=$JAVA_HOME/bin:$PATH

export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

M2_HOME=/usr/java/apache-maven-3.5.0

export M2_HOME

PATH=$PATH:$M2_HOME/bin

export PATH

原文：http://www.cnblogs.com/justuntil/p/7707391.html