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do numbers 4-8
4. Given any directory, use the Is command to display: • all files and sub-directories starting with the letter D (note do
5. Assume that the following files are in the working directory: $ ls intro notesb ref2 section 1 section3 section4b notesa r
6. File copy, move, and removal. Use one command to finish each step. You should not use cd command at all Under your home
7. Link a) Go to your Documents directory; b) Create a file file1 with the text hello in it; c) Create a hard link name
h) Use a text editor (Nano or VIM) to edit soft2: change hello to hello, world. Now, what is the content in each of the
8. Translate the following file permission setting between the symbol format and the octal number format. Symbol format Octal
9. Review questions (discuss the ones you are not sure or totally confused in our discussion board): a) How can you create a
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Answer #1

Q4. Check the attached file for the solution.

a) ls -fd D*

b) ls -d */

c) ls -ap|egrep "^\..*/$"

Activities Terminal Mon 18:57 maya@local-station: - File Edit View Search Terminal Help maya@local-station:~$ ls -fd D* Deskt

Q5. Check the attached file for solution

a) ls sec*

b) ls sec*[1-3]

c) ls in*

d) ls sec*[13] ref[13]

Activities Terminal Mon 18:58 maya@local-station: - File Edit View Search Terminal Help maya@local-station:~$ ls sec* sectionQ6

a) cat >[email protected]

b) cp [email protected] myname

c)mkdir backup

d) mv [email protected] \backup\mynewname

e) cp -r backup backp2

f) rmdir -r backup

g) mv backup2 backup3

h) ls backcup3

7)

a) cd Documents

b) cat > file1

hello

ctrl+z

c) ln file1 file2

d) ln -s file1 soft1

ln -s file2 soft2

e)ls -l file1 file2 soft1 soft2

f)yes,the contents will be same,we can check using:-

cmp file1 file2

cmp soft1 soft2

g) ln soft1 file3

h) vi soft2

after changing in this file,all the files get change and will have same contents

i) mv file1 change

after that use ls -l view the details and now the links will be in different color

8)

a) 744

b) 665

c)rwxr_xr_x

d)rw_r__r__

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