http://ubuntu.dormforce.net/使用说明
打开Software Manager，点击Edit⇒Software Sources
在Download from中选择Other
选择China⇒mirrors.ustc.edu.cn
点击Choose Server
a wonderful Eclipse plugin:
WindowBuilder, which can be used to develope Swing/SWT UI:
WindowBuilder is built as a plug-in to Eclipse and the various Eclipse-based IDEs (RAD, RSA, MyEclipse, JBuilder, etc.). The plug-in builds an abstract syntax tree (AST) to navigate the source code and uses GEF to display and manage the visual presentation.
Develop Java graphical user interfaces in minutes for Swing, SWT, RCP and XWT with WindowBuilder Pro's WYSIWYG, drag-and-drop interface. Use wizards, editors and intelligent layout assist to automatically generate clean Java code, with the visual design and source always in sync.
The project website: http://www.eclipse.org/windowbuilder/
To install the plugin in Eclipse: http://www.eclipse.org/windowbuilder/download.php
Example:
abc 1000 3452 2463 2343 2176 7654 3452 8765 5643 3452
abc 1000 3452 2463 2343 2176 7654 3452 8765 5643 3452
tas 3420 3562 2123 1343 2176 7654 3252 8765 5643 3452
aer 1000 3452 2463 2343 2176 7654 3452 8765 5643 3452
tas 3420 3562 2123 1343 2176 7654 3252 8765 5643 3452
UNIX:display the no of occurance and the record
> sort f1.txt|uniq -c
2 abc 1000 3452 2463 2343 2176 7654 3452 8765 5643 3452
1 aer 1000 3452 2463 2343 2176 7654 3452 8765 5643 3452
2 tas 3420 3562 2123 1343 2176 7654 3252 8765 5643 3452
display only the duplicate records
> sort f1.txt|uniq -dabc 1000 3452 2463 2343 2176 7654 3452 8765 5643 3452
tas 3420 3562 2123 1343 2176 7654 3252 8765 5643 3452
display distinct records
> sort f1.txt|uniqabc 1000 3452 2463 2343 2176 7654 3452 8765 5643 3452
aer 1000 3452 2463 2343 2176 7654 3452 8765 5643 3452
tas 3420 3562 2123 1343 2176 7654 3252 8765 5643 3452
Reference:
Shell: How To Remove Duplicate Text Lines
Windows:
Notepad++ can sort by line, and remove the duplicate lines at the same time.
- Open the menu under: TextFX-->TextFX Tools
Make sure "sort outputs only unique..." is checked
select a block of text (ctrl-a to select the entire document).
click "sort lines case sensitive" or "sort lines case insensitive"
1.安装JAVA环境
sudo apt-get install sun-java5-jre
2.下载tomcat： http://tomcat.apache.org/
3.解压tomcat
$sudo tar zxvf apache-tomcat-7.0.26.tar.gz -C /opt
$sudo mv /opt/apache-tomcat-7.0.26.tar.gz /opt/tomcat
4.启动tomcat
$sudo /opt/tomcat/bin/startup.sh
如果能看到下列提示，就表明启动成功了！
>Using CATALINA_BASE: /opt/tomcat
>Using CATALINA_HOME: /opt/tomcat
>Using CATALINA_TMPDIR: /opt/tomcat/temp
>Using JRE_HOME: /usr/lib/j2sdk1.5-sun
打开Firefox，在地址栏中输入http://localhost:8080，如果出来Tomcat的缺省界面，说明测试通过！
5.停止Tomcat服务
$sudo /opt/tomcat/bin/shutdown.sh
1.下载安装 RubyInstaller： http://rubyforge.org/frs/?group_id=167&release_id=46588
2. 检查 RubyGems 版本，须高于 1.3.6
gem -v
3.如果版本不是最新，可以通过下面的命令更新至最新版本：
gem update --system
gem uninstall rubygems-updatｅ
４.安装 Rails：
gem install rails
1.按照github上的指南配置（
http://help.github.com/win-set-up-git/）基础的git环境。
2.在github上创建一个Repository。
3.在Eclipse中通过“Eclipse Marketplaces”，在Market Places里安装egit。
4.在Eclipse中生public key, 并添加到GitHub Repository中。
Eclipse中通过：performance -> SSH2 -> Key Management -> Gernerate RSA Key 生成 SSH 的 public key。
在GitHub中通过：edit your profile -> ssh key -> Add SSH Key 添加SSH Key, 把上面生成的 public key 拷贝到这里，保存。
5.Eclipse里File菜单，Import，即可从git导入刚添加到git的项目了。
6.修改，并提交。在项目上点右键–>team–>commit。commit是commit到本机的git库，而push才是同步到github。
1.下载最新版 Eclipse:
官方下载：http://www.eclipse.org/downloads/
2.解压下载的压缩包：
$sudo tar xvfz eclipse-SDK-3.1.2-linux-gtk.tar.gz -C /opt
这个时候，就可以在 /opt 文件夹中看到出现了一个eclipse的文件夹，双击其中的eclipse文件就可以运行eclipse了。
3.在菜单设置Eclipse选项： $gedit ~/.local/share/applications/eclipse-user.desktop
插入一下内容：
[Desktop Entry]
Comment=Java IDE
Name=Eclipse
Exec=/opt/eclipse/eclipse
Encoding=UTF-8
Terminal=false
Type=Application
Categories=Application;Development;
Icon=/opt/eclipse/icon.xpm