在ubuntu上安装weka

0.前提

系统已有java环境

1.解压缩安装包

caiyong@caiyong:/home/caiyong/setup/weka$sudo unzip weka-3-6-12.zip -d /opt/
caiyong@caiyong:/opt/weka$ sudo mv weka-3-6-12/    weka
caiyong@caiyong:/opt$ sudo chown -R caiyong    ./weka/

2.配置环境变量

在/etc/profile中添加如下内容：

#weka environment

export WEKA_HOME=/opt/weka
export CLASSPATH=$CLASSPATH:$WEKA_HOME/weka.jar

验证：
caiyong@caiyong:/opt/weka$ source /etc/profile
caiyong@caiyong:/opt/weka$ echo $CLASSPATH
/opt/hadoop/libexec:/opt/hadoop/lib:.:/usr/java/jdk/lib/dt.jar:/usr/java/jdk/lib/tools.jar:/opt/hadoop/etc/hadoop:/opt/weka/weka.jar

3.运行

caiyong@caiyong:/opt/weka$ java -Xmx1000M -jar weka.jar
---Registering Weka Editors---
Trying to add database driver (JDBC): jdbc.idbDriver - Error, not in CLASSPATH?

4.制作weka启动命令

caiyong@caiyong:/opt$ sudo gedit /usr/bin/weka

写上以下内容：

#!/bin/bash
cd $WEKA_HOME
java -Xmx1000M -jar weka.jar

caiyong@caiyong:~$ weka
bash: /usr/bin/weka: 权限不够
caiyong@caiyong:~$ sudo chmod 775 /usr/bin/weka
[sudo] password for caiyong:
caiyong@caiyong:~$ weka
---Registering Weka Editors---
Trying to add database driver (JDBC): jdbc.idbDriver - Error, not in CLASSPATH?