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                          COMMAND                       

GO

  chgrp

 SYNTAX

       chgrp  group  file ...

 FUNCTION

       chgrp changes the group ID of each file to

       group.  The group may be specified either

       as a decimal group id or as a group name.

 NOTE: 

       The specified group id need not be present

       in the /etc/group file; however, the

       specified group name does.

       Only the owner of a file, or a superuser

       may change the group ID of a file.

 Let us get a long listing for the three files

 A, B, and C by typing ls -l A B C.

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type ls -l A B C

 Please type ls -l A B C

 You will be helped this time.

 $PROMPT$

FORGET1

 Observe the result on the terminal.

 ls -l A B C                        

 crwx------   2 admin  root     192 Apr 16 09:07 A

 drwxr-xr-x   1 dave    cti   11800 Apr 16 10:43 B

 -rw-rw-r--   1 yori    cti    5212 Apr 16 11:33 C

 The file A belongs to the group root, 

 files B and C belong to the cti group.

 crwx------   2 admin  root     192 Apr 16 09:07 A

 drwxr-xr-x   1 dave    cti   11800 Apr 16 10:43 B

 -rw-rw-r--   1 yori    cti    5212 Apr 16 11:33 C

 Assuming that you are entitled to change

 the group of these files, enter the command 

 to change the group to 250.

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type chgrp 250 A B C

 Please type chgrp 250 A B C

 I guess I must type this for you:

 $PROMPT$

FORGET2

 Observe the result on the terminal.

 $PROMPT$chgrp 250 A B C                       

 $PROMPT$

 Now, let us verify the new groups of the

 files by typing: ls -l A B C.

 $PROMPT$

 That is correct!

 You've got it on the 2nd try.

 Good, you understand the concept.

 Please type ls -l A B C

 Please type ls -l A B C

 You will be helped this time.

 $PROMPT$

FORGET3

 Observe the result on the terminal.

 ls -l A B C                         

 crwx------   2 admin   250    192 Apr 16 09:07 A

 drwxr-xr-x   1 root    250  11800 Apr 16 10:43 B

 -rw-rw-r--   1 yori    250   5212 Apr 16 11:33 C

 As you can see, all three files now belong to the group 250.