改变文件权限使用命令：chmod 777 filename
然后才可以使用输入：./xxx.sh 执行安装操作
zyx@zyx-desktop:/$ cd home/zyx/Downloads/
zyx@zyx-desktop:~/Downloads$ ls
jdk-6u25-nb-7_0-linux-ml.sh netbeans-7.0-ml-cpp-linux.sh
zyx@zyx-desktop:~/Downloads$ chmod 777 jdk-6u25-nb-7_0-linux-ml.sh
输入：./jdk-6u25-nb-7_0-linux-ml.sh 执行安装操作
zyx@zyx-desktop:~/Downloads$ ./jdk-6u25-nb-7_0-linux-ml.sh
Configuring the installer...
Searching for JVM on the system...
Preparing bundled JVM ...
Extracting installation data...
Running the installer wizard...
此处跳出jdk-6u25-nb-7_0-linux安装向导窗口。安装步骤同xp系统雷同
zyx@zyx-desktop:~/Downloads$ ls
jdk-6u25-nb-7_0-linux-ml.sh netbeans-7.0-ml-cpp-linux.sh
zyx@zyx-desktop:~/Downloads$ chmod 777 netbeans-7.0-ml-cpp-linux.sh
zyx@zyx-desktop:~/Downloads$ ./netbeans-7.0-ml-cpp-linux.sh
Configuring the installer...
Searching for JVM on the system...
Java SE Development Kit (JDK) was not found on this computer
此时跳出错误！！！
JDK 6 is required for installing the NetBeans IDE. Make sure that the JDK is properly installed and run installer again.
You can specify valid JDK location using --javahome installer argument.
To download the JDK, visit http://java.sun.com/javase/downloads
You can specify valid JDK location using --javahome installer argument.
灵感来源于错误描述：
1.未找到JDK
Java SE Development Kit (JDK) was not found on this computer
2.可指定--javahome installer argument路径来解决
You can specify valid JDK location using --javahome installer argument.
解决办法如下：
执行命令：sh netbeans-7.0-ml-cpp-linux.sh --javahome /home/zyx/jdk1.6.0_25/jre/
zyx@zyx-desktop:~/Downloads$ sh netbeans-7.0-ml-cpp-linux.sh --javahome /home/zyx/jdk1.6.0_25/jre/
Configuring the installer...
Searching for JVM on the system...
Extracting installation data...
Running the installer wizard...
此处跳出netbeans-7.0-ml-cpp-linux安装向导窗口。安装步骤同xp系统雷同
zyx@zyx-desktop:~/Downloads$