linux用户覆盖全局（自定义）变量环境

dev_ydzj_1@localhost usr]$ cd $HOME

[dev_ydzj_1@localhost ~]$ pwd

/home/dev_ydzj_1

[dev_ydzj_1@localhost ~]$ java -version

java version "1.6.0_24"

Java(TM) SE Runtime Environment (build 1.6.0_24-b07)

Java HotSpot(TM) Server VM (build 19.1-b02, mixed mode)

在公司看到上述结果，认为linux系统全局java环境是1.6，但是看到下面的执行结果我就疑惑了

[dev_ydzj_1@localhost ~]$ tail -3 /etc/profile

export JAVA_HOME=/opt/jdk/jdk1.5.0_15

export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib

export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:$HOMR/bin

找人解疑，看到下面结果，顿时有所感悟！

[dev_ydzj_1@localhost ~]$ less .bash_profile

# .bash_profile

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

. ~/.bashrc

fi

# User specific environment and startup programs

export TOMCAT_HOME=/home/dev_ydzj_1/apache-tomcat-5.5.25

export CATALINA_HOME=/home/dev_ydzj_1/apache-tomcat-5.5.25

export JAVA_HOME=/opt/jdk/jdk1.6.0_24

export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib

PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$TOMCAT_HOME/bin:$CATALINA_HOME/bin:$PATH:$HOME/bin

export PATH

记录，备忘。嘿嘿！