90    3.  ++-   

     .  ,  -
  .

   .

         -
  ,   .

        -
 .

 .         .

      ,   -
  .

    ,     .

       .

       
.

     ,   -
  .

      () 
.       ,     
 .       
 , -   .   
""    ,      
.       (     
         ), -
  ""    ,   init ( -
 )     .   ""
      .

3.7.1.  exit (), kill ()  abort ()

         :

exit ()  abort ().  exit ()    -
 .        , -
  .  exit ()      , -
     ,    
 .  status    , -
   ,   . -
 status    : , EXIT_FAILURE 
EXIT_SUCCESS.  0     . 
          -
 status.        -
,  ( "") ""  init.

 abort ()     ,  
     fcloseO   -
 .         -