安装java的问题，多谢了

ahhfajy

我装了j2sdk-1_4_2_05-linux-i586.bin
cd /usr/local/
chmod +x j2sdk-1_4_2_05-linux-i586.bin
./j2sdk-1_4_2_05-linux-i586.bin
cd /usr/local/
ln -s j2sdk1.4.2_05 java
cat >>/etc/profile
输入或者粘贴以下内容：
JAVA_HOME=/usr/local/java/
CLASSPATH=.:/usr/local/java/lib/dt.jar:/usr/local/java/lib/tools/jar
PATH=/usr/local/java/binPATH
export PATH JAVA_HOME CLASSPATH
按ctrl+d保存退出。然后运行
source /etc/profile

可是为什么每次不在终端运行source /etc/profile，javac和java就不能识别的
命令呢？
[root@localhost root]# javac
bash: javac: command not found
[root@localhost root]# source /etc/profile
[root@localhost root]# javac
Usage: javac <options> <source files>
where possible options include:
  -g                        Generate all debugging info
  -g:none                   Generate no debugging info
  -g:{lines,vars,source}    Generate only some debugging info
  -nowarn                   Generate no warnings
  -verbose                  Output messages about what the compiler is doing
  -deprecation              Output source locations where deprecated APIs are used
  -classpath <path>         Specify where to find user class files
  -sourcepath <path>        Specify where to find input source files
  -bootclasspath <path>     Override location of bootstrap class files
  -extdirs <dirs>           Override location of installed extensions
  -d <directory>            Specify where to place generated class files
  -encoding <encoding>      Specify character encoding used by source files
  -source <release>         Provide source compatibility with specified release
  -target <release>         Generate class files for specific VM version
  -help                     Print a synopsis of standard options
:help 多谢了！

fangshun

如果是mandrake，编辑~/.bashrc,加入
PATH=$JAVA_HOME/binPATH
export PATH
如果是debian
cd /usr/bin
ln -s $JAVA_HOME/bin/* .

ahhfajy

可是我是fc2啊
怎么办呢？

menglianjing

look

ahhfajy

多谢斑竹，我是这样解决的把/etc/profile改成
export JAVA_HOME=(java的安装路径)
export JRE=$(JAVA_HOME)/jre
export CLASSPAHT=$JAVA_HOME/libJRE/lib:.
export PATH=$PATHJAVA_HOME/binJRE/bin:.