          -
.    ,         . -
     ,    ,   z:

$ echo [a-m]*

$ echo *[x-z]                                                                   |

 

      ([)    (!) 
 ,  ,    ,   , -
  ,    1".] *    ,  
    .      (-)   
 ()),        .

  ,   Is    
   .  Is    ?old. 
  ?old     hold      Is.
    ,   ?  (.  "-
 "  5),         
  Is.  Is    ,   ,
      ?old (    ):

$ Is ?old

hold
$ Is \?old

?old: No such file or directory     (    )

^^^L         .  
^^^^       ,   ,
^    .      (Is, cat, echo, Ipr)
^^          .   -
          .  -
   echo ,   ,  ,    
   ;       .

     . Is    -
   ;    .

 

  (builtin)    (  ), 
  .        -
 ,          -
  .       
,       ,      
  .

 echo   .     ,
          . -
   which  whereis    echo   

242                                               II.   Red Hat Linux