can i get answer about linux command? 1) To create a directory called “Summer_20

Question

can i get answer about linux command?

1) To create a directory called “Summer_2016” and change to this directory.

2) To create a file called “file1”. And, please redirect text “Unix is useful” to file1.

Display the content of this file and redirect it to another file named “file2”.

3) Please delete the file “file2”.

4) Please copy “file1” to “file2”.

5) Please change the permission of the “file1” to the full permission to you only,

but no any permission to other people. And, change the permission of the “file2”

to have “read” and “write” for you only, “read” only for people at same group,

and no any permission for others.

6) Please display the long list (or detailed list) of all files under your current directory “Summer_2016” to confirm your intended permissions for “file1” and ”file2”.

7) Please display current time information and append the display to file1.

8) Please use a command to append or combine the content of file1 and file2, then redirect to a file called “file3”.

9) Please APPEND the output of all environment variables to file3.

10) Please list 6 ways to switch to INSERT mode in vi/vim.

Explanation / Answer

1. create a directory: mkdir<Summer_2016>

For changing directory: cd document/Summer_2016

3. delete the file “file2”: $ rm -i file2

4. copy “file1” to “file2”: $ cp file1 file2

6. $ ls/Summer_2016

7. For date: $ date

Append the display to file1: cat file1

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