6.         /etc/passwd.    
      /etc/passwd  cat  less.
   /etc/passwd      
.

)        /etc/passwd?

)       ?

)     ?

)        ? (:

   .)

)    /etc/passwd     
.      ,     -
        .  
    ?

7.  /home/jenny/draft  /home/alex/letter      
 ,       ,     
 ?

)    vi letter.

)    vi draft.

)        31  2005 , 
    vi.

)     1  2005 ,      vi.

8. ,     ,    -
     jobs_list,  -    -
 . ,     (  ) -
   jobs_list.       -
     ?

9.      - ,  
?      - , 
 ?   .

10. ,    ,   . 6.2,  -
   :

d--x--x---   3 jenny    pubs         512 Mar 10 15:16 business
drwxr-xr-x   2 jenny    pubs         512 Mar 10 15:16 business/milk_co

          -
    ,   ? ,  -
     correspond,   cheese_co -
   .

) cd correspond/business/milk_co

) Is -I correspond/business

) cat correspond/business/cheese 

 6.   Linux 219