<<<<< TERMINAL SCREEN DRAWING SUBROUTINE >>>>>>>>

UTERMINAL

                         TERMINAL                       

NEXT

 $V1$

 $V1$

     <<<<<< TIME POSE SUBROUTINE >>>>>>>>>

PAUSE

If they want to quit, do so

PAGETURNER

If they want to quit, do so

    <<<<<< 4 BOTTOM LINES CLEANING SUBROUTINE >>>>>>

ENCORE5

    <<<<<< REVIEW CLEANING SUBROUTINE >>>>>>

ENCORE

    <<<<<< CLEAN THE INSIDE OF BOUNDED ARE ONLY >>>>>

BOX

                     ILLUSTRATION                     

GO

 The wild card  *  matches any character string.

           * 

 The wild card  ?  matches any character.

           ? 

 The wild cards  [ ... ]  match any character in the square braces.

 e.g.:  [aB13] will match  a ,  B ,  1 , and  3 .

           [ ... ]  

CA: 19

TH: The wild cards  " ... "  enclose a character string;

: however they will expand all Shell commands.

PA: 2

CA: 10

TH:           " ... " 

U: BOTCLEAN

CA: 19

TH: The wild cards  ' ... '  also enclose a character 

: string the contents of which are NOT expanded in Shell commands.

PA: 2

CA: 12

TH:           ' ... ' 

 Let us see the listing of files in the current directory:

 Please enter the appropriate command.

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please use ls

 Please type ls

 You will be helped this time:

 $PROMPT$

FORGET1

 Observe the result on the terminal!

 ls                           

total 9

 chap_1     ex_2_wc      p

 chap_2     ex_3_who     proof

 chap_3     l            review

 ex_1_wc    man          valid

 $PROMPT$

 Now list all files whose names begin with chap:

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please use  *  to expand names beginning with chap

 Please enter ls chap*

 You will be helped this time:

 $PROMPT$

FORGET2

 ls chap*                              

 Observe the result on the terminal!

 chapt_1      chapt_2      chapt_3

 $PROMPT$

 Now list all files beginning with ex_ with 

 any single character following the "_", followed 

 by "_wc".

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please use  ?  to represent the character after "_" 

 Please enter ls ex_?_wc

 You will be helped this time:

 $PROMPT$                         

FORGET3

 ls ex_?_wc                          

 Observe the result on the terminal!

 ex_1_wc    ex_2_wc

 $PROMPT$

 $  

 Please list all files starting with [k-q]

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please use ls with [k-q]*

 Please enter ls [k-q]*

 You will be helped this time:

 $PROMPT$                          

FORGET4

 ls [k-q]*                            

 Observe the result on the terminal!

 l        p

 $PROMPT$