Linux配置jdk环境变量后重启电脑依然不能直接使用

运行JAVA -version

把path里的$path放到最后在试试

回复mazhaohe

嗯，重启系统试试

/usr/jdk/bin:/usr/jdk/jre/bin:/usr/lib64/R:/usr/lib64/R/bin:/usr/jdk/bin:/usr/jdk/jre/bin:/usr/lib64/R:/usr/lib64/R/bin:/usr/jdk/bin:/usr/jdk/jre/bin:/usr/lib64/R:/usr/lib64/R/bin:/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

JAVA ？java ？

我记得有一条update-a...的命令，记不清了。百度一下

[typhoon@TFW-CENT6-LT ~]$ cat /etc/profile.d/tfw_01_java.sh
#!/bin/sh
#　　　 Version:　　　　2015-06-13_16-47
#　　　 OpenJDK 1.8.0_20-b26 x86-64.
export JAVA_HOME="/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.20-3.b26.el6.x86_64";
#　　　 Common.
export PATH=$PATH:$JAVA_HOME/bin;
export CLASSPATH=$CLASSPATH:.;
[typhoon@TFW-CENT6-LT ~]$ echo $JAVA_HOME
/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.20-3.b26.el6.x86_64
[typhoon@TFW-CENT6-LT ~]$ echo $PATH
/usr/lib64/qt-3.3/bin:/usr/local/bin:/usr/bin:/bin:/usr/games:/usr/local/sbin:/usr/sbin:/sbin:/appends/addons/exec:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.20-3.b26.el6.x86_64/bin:/ext/ro1/prog/Tomcat/bin:/ext/ro1/prog/eclipse-SDK-3.6.2.M20110210_1200-linux-gtk-x86_64:/ext/ro1/prog/eclipse-adt-4.2.2.M20130204-1200-linux-gtk-x86_64:/ext/ro1/prog/eclipse-SDK-4.4.2.M20150204-1700-linux-gtk-x86_64:/ext/ro1/prog/adb-linux-x86:/ext/ro1/prog/game_emulators/regen:/home/typhoon/bin:/appends/addons/exec:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.20-3.b26.el6.x86_64/bin:/ext/ro1/prog/Tomcat/bin:/ext/ro1/prog/eclipse-SDK-3.6.2.M20110210_1200-linux-gtk-x86_64:/ext/ro1/prog/eclipse-adt-4.2.2.M20130204-1200-linux-gtk-x86_64:/ext/ro1/prog/eclipse-SDK-4.4.2.M20150204-1700-linux-gtk-x86_64:/ext/ro1/prog/adb-linux-x86:/ext/ro1/prog/game_emulators/regen
[typhoon@TFW-CENT6-LT ~]$ echo $CLASS_PATH
[typhoon@TFW-CENT6-LT ~]$ ls $JAVA_HOME
bin　demo　include　jre　lib　sample　src.zip　tapset
[typhoon@TFW-CENT6-LT ~]$

确认 source /etc/profile 可以生效？
那么用关键字“/etc/profile”+“不生效”搜搜看？

几种都试试，看看有没有用：
http://bbs.chinaunix.net/thread-4164863-1-1.html

已经好了，是有关R的配置原因，谢谢大家啦