centOS6.4下jdk配置
1.为什么我的JDK这样配置不好用?
[hadoop@hadoop-master profile.d]$ tail /etc/profile
unset -f pathmunge
export JAVA_HOME=/opt/modules/jdk_1.6.0_45
##export JAVA_BIN=/opt/modules/jdk1.6.0_45/bin
export PATH=$PATH:$JAVA_HOME/bin
##export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
##export JAVA_HOME JAVA_BIN PATH CLASSPATH
export HADOOP_HOME=/opt/modules/hadoop-1.2.1
export PATH=$PATH:$HADOOP_HOME/bin
按上面的写法就不行
[hadoop@hadoop-master profile.d]$ java -version
bash: java: command not found
2.我在/etc/profile.d/java.sh里写,就可以找到JDK了
export JAVA_HOME=/opt/modules/jdk_1.6.0_45
export PATH=$PATH:$JAVA_HOME/bin
为什么呢大哥们?