Create the following links (hard links)X Source File Name of Link Destination of the Link b.txt b.link sa link rlink a link 4.link n link sa.txt txd a.txt n.txt Ltxt txt z.txt u9.txt link 3. Write down the content of a.txt and the content of a.link. Why the contents of both files are the same? 4. Open a.txt and modify it by adding a new line at the end of the file that contains your name. After doing the modification to a.txt open a.link and explained what happened to the file and why? 5. Delete a.txt. What happened to a.link? Why? 6. View the contents of files c4.txt and c4.link and after you view their contents delete c4.link. happened to c4.txt? Why? What Create 2 more regular files under tree4 directory and name them testI, test2 respectively. The content of testl should be the following text: cis232 UNIX Operating System, and the content of test2 should be the following text: My UNIX class is my favorite class 7. Explain the output of the following command: we test Explain the output of the following command: we test2 Explain the output of the following command: we testl test2 Explain the output of the following command: wc testl test2 m/a/e/ea.txt Assume that you have the following regular files under your home directory, answer the following questions (You don't have to create all these files but if you want to practice on the computer then you will have to create them under your home directory) 8. 12 Newfile2 English math commands Modern 13 f4 afs file2 mask F fb engineer english2 e32 file43 12 fle43 file newfile56 fa Using wild cards copy fl, f2, and f3 into w directory Using wild cards display the long listing of newfl, fl, 12, and old12 Using wild cards move mask, commands, and math to the r directory : Using wild cards remove everything except the files that starts with n in their filenames . Using wild cards display the content of: file23, file34, file43, and newfile56 wild cards copy everything except files that start with f into p directory Using wild cards remove everything from p directory Using wild cards move all the files that ends with one single number into the a directory. In this case you should move fl, 12, f3, f4, f5, newfl, oldf2, file1, file2, newfilel, and english2 ones that starts with f to answer these questions) Using wild cards display the number of words, characters and lines in all the files except the 9. What will happed after the execution of the following commands (Use the previous list of files in order rm e cp (1-31 test4/t/k we new