Linux - User's Guide

 
   :
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  
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 
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  
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    
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    
  
      :
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 .
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 .
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   .
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    .
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     .
●  .
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)  (       )    (    

)    .(
  
      :
● 
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   
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 
!                 
   .           .
: 

         .
:                    
       .
   