      :   
    .

$ Is

memo memo.0714 practice

$ echo 



$ echo  .

 .

$ echo : *

: memo memo.0714 practice

$

. 5.9.  echo      (  echo)

 echo        
 Linux.      7 echo   
    .   9  28   -
 echo         -
  .

date:    

 date     , :

$ date

Wed Apr 13 08:00:38 PST 2005

        date,   -
 .   .  man-  date.

$ date +"%A %B %d"

Wednesday April 13

script:   Linux

 script ,   ,   , 
       .     
 , ,     .  -
     vi,   vi  
        (, ), 
   ,     .  ,
  vi,     cat,   ,    -
    .

   script       typescript. 
  ,    script ,     .
     ,   -   script,  
 ,  script   .  ,  
  script:

 5.  Linux 165