    
  . ()  source

    (, .bash_profile)   -
 ,       ,   
.         . (-
).       ,   .     -
 .    .  source   
,         . -
,         .  source -
 ,   ,    .   -
 .  source     ,    ,
      (,   -
     ).      -
  ,     .  source,   -
     ,   . . 
"export:    "    .

    .bash_profile   -
     PS1  .  .     -
:

cat .bash_profile

TERM=vtlOO

PATH=/bin:/usr/bin:/usr/sbin:/home/alex/bin

export PS1="$(hostname -f): "

export CDPATH=:$HOME

stty kill ""u'

$ . .bash_profile

bravo.tcorp.com: $

 

          -
 .    ,   
          .  -
   ,       -
 set (. ).

$0:   

   ,     ,  
$0.    ,         -
 :

$ cat abc

echo  ,   

echo     - $0

$ abc

 ,   

    - abc

 9,  II: Bourne Again Shell                                            315