  noglob (set - noglob)     ,  -
       : *.      
     *, .  . .  "    -
 "  7.

 

,   ,       .
        trap,    -
 . 28.6       .

:  

      :   
      ,   
    .    ,  -
  ,     .    -
  (  )   ,   
,   . .  "export:  -
  "  9.    ,     
   ( ).

       ,     .
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 ,      ,   -
.  ,  .     
 ,     . , ,  . 
     ,     .
   :

  

        ,  -
 .        -
,         , -
  .   ,    -
  :

$ cat exec_demo

who

 date

echo   echo  .

$ exec_demo

jenny    pts/7     May 30 7:05 (bravo.tcorp.com)

his      pts/1     May 30 6:59 (:0.0)

Mon Jun 14 10:58:05 PDT 2004

       out (. 
"if... then... else"    )      
    .   out  

 28.   Bourne Again Shell                                901