8.   ,   :

)      .

)     .

)     .

)  .

         ?

9. ,      .   
   Is?

$ Is

abc abd abe abf abg abh

$ nn abc ab*

rm: cannot remove 'abc': No such file or directory
(  'abc':     )

 

10.        (>) 
   ,    . -
,   .

11.    ,     -
 PATH.  ,   PATH   .   -
,    ,     . 
    PATH   ?

12. ,         ,      .

)         .

) ,       ,     -
.

13.       ,   , -
,  CONTROL,      ?

14.   noclobber        -
    mv?

15.            ?
     ,  ?   ? (
 ,    .    -
,  ,   
,     .)

16.   answers    :

$ > answers.0102 < answers cat

,      .    
    ?

 7.  I: Bourne Again Shell                                            245