        (.  "-
 "  5).

|  &      -

      (I)   
 (&).       ,   
  .      
   ,       -
    ,       
    .

       ,    :

$  |  | z
$ Is -1 ] grep tmp | less

          ,  -
     z.       
,        z,  z   
  ,         .   -
     Is -1,    grep tmp,   z   -
  less.    ()    
  ,    tmp,   less.

     d     ,  
f    :

$ d &  & f

[1] 14271
[2] 14272

         ()
   ,    .  -
     f.

       ,  -
  -  .      -
  ,  Done ()   ,   -
;     .     
     +,    
  -.        . -
         
 :

[1]- Done               d
[2]+ Done               e

         . 
     :

$ d &  & ? &

[1] 14290
[2] 14291
[3] 14292

286                                        III.   Red Hat Linux