Question

please answer as many as possible, all the answers will be like 1 line long.

1. By default, which account is the owner of a file or directory?
   
   
2. Name the three types of access permissions.
   
   
3. Name the three categories of accounts which are used in assigning access permissions.
   
   
4. Who can change the access permissions on a file or directory?
   
   
5. What would you enter on the command line if you wanted to see the access permissions of entries in your current directory?
   
   
6. What is the name of the command you would use to change the access permissions for a file or directory?
   
   
7. Three numbers can be used to specify access permissions when using the command above. Each of these numbers can only be in a certain range. What is the maximum and minimum for each of these three numbers?
   
   
8. If the file work.sh has the permissions given below, what could the owner of the file do?

   -rwxr-x--x 1 ghoffman grad 0 Sep 27 11:08 work.sh

   
   
   
9. For the same file, what could the group do?
   
   
10. For the same file, what could every other account do?

Answer 1

Answer :-

1. By default , The administrator (admin) is the owner of all the files and directories in the system . Thus , only the admins admin have all the access permissions .

2. The three types of access permisssions are :- "Read" , "Write" and "Execute" . These are denoted by r , w and x respectivly . These access permissions decides whether the user will be able to read only the file or he is given the permission to make changes to the file and so on .

3. The three categories of accounts which are used in assigning access permissions are :-  

• User or the owner
• groups
• other users

4. Only a Superuser and the owner can change the access permissions on a file or directory .

5 . If you want to see the access permissions of entries in your current directory then you first put "ls - l" command , it will list the menus , then you nee to select permisions option then you will be able to see the access permissions .

6. chmod command is used to change the access permissions for a file or directory , the various permissions such as read ,write and execute to different users will be assigned using this command.