Unix questions

[udaybond]

Hi All
Can any of you pls. answer the following quesions ?

1. How will u list the contents of parent directory from the current directory.
2. Wha are the default system wide permissions for a file and directory.
3.What is the default umask value.
4.A user is not able to chnage the permission , What can it happen.
5. What's the differenec between ls -F , ls -p
6. If a file permission are 000, can the superuser still read and write to that file.
7. What's the command to remove the files without write permission.
8. How will u make sure that no one can see the files which u had created.
9. How will u change the permissions of a directory recursivly

Any response will be greatly appreciated.

Best Regards
Uday

[udaybond]

Can any of you pls. answer these queries.

1. Whaere is the password entry of a user sgtored.
2. How will u find out your terminal file name.
3. What is the maximum length of a filename in Unix.
4. Which ls options makes directory and executables seperatly.
5. What does three links to a directory indicate
6. What is the block size in Unix.

[udaybond]

Can any of you pls. these faq's also.. Actually I am reading unix questions in a book and asking for help for which I don't know the answer

1.. Write a shell script to list only the hidden files in the current directories.
2. What is the o/p of following command $a =*, echo $a, echo "$a"
3. Which of the following is allowed in an arithmatic involving expr instruction. [],{},()
4. If values "hi", "Hello","Bye","Good Bye" are supplied to the following statement what will be the o/p
read n1,n2 , echo $n1 $n2.
5. How do you know that how many commands can be stored in the buffer in one session.

Best Regards
Uday

[udaybond]

1. What is the command to select the lines except the last line of the unix.
2. Give the command to replace "Linusx" By " Red Had Linux"
3.What will the regular expression "a.*b" do
4. How will u use sed operator to insert two spaces in the start of every line.
5. Give the command to insert a blank line after every line that is read.
6. Give the command to replace all "." with ":"
7.Give the command to display only the filename where an expression " The" or "THE" exists.

[Will.Spencer]

Uday:

Those aren't FAQ's -- those questions are your homework.

You won't benefit from your time at school if you talk other people into doing your homework.

To get the most out of school, you must do your own homework. If you get stuck on a particular question, feel free to ask us for help after you have tried to solve it yourself.

Us doing your homework for you would be cheating you, your parents, and your fellow students.