Install RMagick on Ubuntu

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1. sudo aptitude install -y imagemagick  
2. sudo aptitude install -y libmagick9-dev  
3. sudo gem install rmagick  

sudo aptitude install -y imagemagick
sudo aptitude install -y libmagick9-dev
sudo gem install rmagick

Bind a key binding that is already defined

To correctly bind a key that is already defined for example by platform - F5 for refresh, the important thing is to create your own context:

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1. <extension point="org.eclipse.ui.contexts">  
2.  <context description="allow refresh via f5" id="com.iwaysoftware.explorer.refresh" <br="">   name="refresh" parentId="org.eclipse.ui.contexts.window">  
3.  </context>  
4. </extension>  

 
     name="refresh" parentId="org.eclipse.ui.contexts.window">
  
 

Once correct context is defined, it needs to be activated. For example, in view:

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1. View.createPartControl(Composite parent) {  
2. ...  
3. ...  
4.  IContextService contextService = (IContextService) getSite().getService(IContextService.class);  
5.         contextService.activateContext("com.iwaysoftware.explorer.refresh");  
6. }  

View.createPartControl(Composite parent) {
...
...
 IContextService contextService = (IContextService) getSite().getService(IContextService.class);
        contextService.activateContext("com.iwaysoftware.explorer.refresh");
}

Then the usual, command is created that is tied to a handler that extends AbstractHandler, command is tied to a binding, and the binding is in turn uses earlier created custom context.

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1. <extension point="org.eclipse.ui.commands">  
2.   <command categoryid="org.eclipse.debug.ui.category.run" <br=""></command>   defaultHandler="com.iwaysoftware.explorer.handler.RefreshHandler" id="com.iwaysoftware.explorer.refreshCommand"  
3.    name="Refresh">  
4.     
5.  </extension>  
6.  <extension point="org.eclipse.ui.bindings">  
7.   <key commandid="com.iwaysoftware.explorer.refreshCommand" <br="">   sequence="F5" schemeId="org.eclipse.ui.defaultAcceleratorConfiguration"  
8.    contextId="com.iwaysoftware.explorer.refresh" />  
9.  </key></extension>  
10.  <extension point="org.eclipse.ui.contexts">  
11.   <context description="allow refresh via F5" id="com.iwaysoftware.explorer.refresh" <br="">   name="refresh" parentId="org.eclipse.ui.contexts.window">  
12.   </context>  
13.  </extension>  

     defaultHandler="com.iwaysoftware.explorer.handler.RefreshHandler" id="com.iwaysoftware.explorer.refreshCommand"
   name="Refresh">
  
 
 
     sequence="F5" schemeId="org.eclipse.ui.defaultAcceleratorConfiguration"
   contextId="com.iwaysoftware.explorer.refresh" />
 
 
     name="refresh" parentId="org.eclipse.ui.contexts.window">
  
 

Kill process that is using paricular port

Find process id and kill it

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1. ruby@t61:~/dev/ruby/demo$ sudo netstat -lpn | grep 3000  
2. [sudo] password for ruby:  
3. tcp        0      0 127.0.0.1:3000          0.0.0.0:*               LISTEN      5358/ruby       
4. ruby@t61:~/dev/ruby/demo$ kill -9 5358  

ruby@t61:~/dev/ruby/demo$ sudo netstat -lpn | grep 3000
[sudo] password for ruby:
tcp        0      0 127.0.0.1:3000          0.0.0.0:*               LISTEN      5358/ruby     
ruby@t61:~/dev/ruby/demo$ kill -9 5358