Fei's profile精诚所至,金石为开。PhotosBlogListsMore Tools Help
There are no photo albums.

精诚所至,金石为开。

December 04

Sleep function for javascript

<script type="text/javascript">
//<![CDATA[
    var clickedOnce = false;
    function ZZzzzZZzzzzzzZZZz(naptime){
        naptime = naptime * 1000;
        var sleeping = true;
        var now = new Date();
        var alarm;
        var startingMSeconds = now.getTime();
        while(sleeping){
            alarm = new Date();
            alarmMSeconds = alarm.getTime();
            if(alarmMSeconds - startingMSeconds > naptime){
                sleeping = false;
           }
        }     
  }
  function submitPressed() {
      if(!clickedOnce) {
          clickedOnce = true;
          ZZzzzZZzzzzzzZZZz(5);
          return true;
      }
      alert('I am true');
      return false;
  }
//]]>
</script>
September 03

How to install postgresql

create user and language.
1. sudo apt-get install postgresql
2. sudo -u postgres psql template1 -c "create user fei with superuser";
3. psql template1
4. template1=# create language plpgsql;

create user and password
2. sudo -u postgres createuser mystaff
3. sudo -u postgres psql template1
4. template1=#alter user mystaff password 'password'
August 25

How to install jogl

1. install jdk first
2. configure path
#!/bin/sh

JOGL_HOME=/opt/jogl
JAVA_HOME=/opt/jdk

export PATH=${JAVA_HOME}/bin:${PATH}
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${JOGL_HOME}/lib
export CLASSPATH=${CLASSPATH}:${JOGL_HOME}/lib/jogl.jar:${JOGL_HOME}/lib/gluegen-rt.jar

How to install Nvidia driver in Ubuntu 8.04

1. 到官方网站下载对应的驱动文件
网站:http://www.nvidia.com
文件:NVIDIA-Linux-x86_64-173.14.12-pkg2.run
2. 安装驱动需要的lib
sudo apt-get install libc6-dev
3. 禁止系统启动默认的驱动
sudo vim /etc/default/linux-restricted-modules-common
在最后的双引号中添加nv nvidia_new,即把文件中的“”,改成“nv nvidia_new”
4. 进入命令行模式
按Ctrl+Alt+F1
5. 停止GDM的进程
sudo /etc/init.d/gdm stop
6. 安装驱动
sudo sh ./NVIDIA-Linux-x86_64-173.14.12-pkg2.run(取决于自己的位置)
7.安装过程中

如果提示有旧驱动,询问是否删除旧驱动,选Yes;
如果提示缺少某某模块(modules),询问是否上网下载,选no;
如果提示编译模块,询问是否进行编译,选ok;
如果提示将要修改Xorg.conf,询问是否允许,选Yes;

8. 安装完成就回到终端,重启GDM
sudo /etc/init.d/gdm restart

如果不想看NVIDIA的LOGO,可以修改 /etc/X11/xorg.conf
在Section “Device”中添加Option “NoLogo” “True”9. 显示高级设置
如果想进行显示方面的高级设置,在终端下输入:nvidia-settings命令.

10. 卸载驱动
sh NVIDIA-Linux-x86_64-173.14.12-pkg2.run –uninstall

January 22

常用软件的安装

1. rpm包的安装

Ubuntu中安装Alien
sudo apt-get install alien

转换一个rpm包为deb
alien -d package-name.rpm

转换一个rpm包为deb并安装生成的包
alien -i package-name.rpm
B. VMware的安装
1. 登录到http://www.vmware.com下载最新版本的vmware workstation安装文件
当前的是VMware-workstation-6.0.2-59824.i386.tar.gz
2. 解压到本机
$ tar -xvzf VMware-workstation-6.0.2-59824.i386.tar.gz
解压到你想要的目录,我的是/opt/vmware-distrib
3. 进入vmware-distrib文件夹,安装
$ cd vmware-distrib
$ ./vmware-install.pl