    IFS.    
 TAB   ,    -
    .

 IFS    ,     -
.    IFS   ;   -
       .    -
  bash   ,      -
 IFS:   ,     exit  
 ,   IFS  .  ,   IFS
      :

$ IFS=$' \t\n'

 

  (.  "     "
 7)          
   .     , 
       ,    -
 *, ?, [  ].        ,   -
 ,         .
          ,    -
   .    echo    -
     tmp*    echo   (trnpl,
tmp2  tmp3),      ,   .  
 tmp*  rm     ,  
tmp*,      echo  ,  
    :

$ Is

trnpl tmp2 tmp3

$ echo tmp*

trnpl tmp2 tmp3

$ nn tmp*

$ echo tmp*

tmp*

        
      ,   
'     .         -
.     $1    , -
  ,      -
 sonar.         -
.   ,      
,       tmp*:

$ echo tmp* $alex

trnpl tmp2 tmp3 sonar
$ echo "tmp* $alex"
tmp* sonar
$ echo 'tmp* $alex'

tmp* $alex

 9.  II: Bourne Again Shell                                            343