 I:

Bourne Again Shell

   ...

   

    

      

    

    

  

  

      

       

   

     Bourne Again Shell (bash)  ,
    .      
,        -
     .  ,  
    ,      
       .    -
          -
.    bash     9,    28 -
      .

       .    -
     ,      . 
      ,   GUI-
 (.  "      "  4)
    (.  "  "  4).