  ,       consolehelper
(.  "consolehelper:     root"    ).)

 shutdown  ,    . 
    ,  19:15,     
 7:15 .        , 
+15,   15    .    -
 (         
,   )    +0    now.
  ,  5 ,    , 
 root,   5   .

 shutdown   -     (  ,  
 reboot,  reboot  now).  -f   -
,        (  
 man-  shutdown).   -   -h   
 (  ,    halt,  halt  now).  
    System halted ( ), 
 -     ,  
    .

 Linux   , shutdown 
 ,     - .   -
    , ,  
     .     
  ,        :

# /sbin/shutdown -h 09:30   9:30   ,

#   10:00.

     .   
Linux-,    ,   . Linux,   UNIX,   
,      ,     -
     .      
       ,  , -
  ,  .  shutdown     .
        ,   sync. -
 sync        .

CONTROL-ALT-DEL:  

   /etc/inittab     Intel  

::ctrlaltdel:/sbin/shutdown -t3 -r now

    '   
,    <CONTROL+ALT+DEL> (  -
   )     . (    ,
  -,     <CONTROL+ALT+BACKSPACE>,  

   /etc/inittab   shutdown   -,   
/etc/shutdown. allow,   ,   root,   shutdown 
 ,         ,
      ( root).

414 '                                      IV.  