UNIX Family of Operating Systems   Execute the UNIX/Linux commands and tasks below and capture screenshots clearly showing successful execution: 1.whoami 2.users 3.ls (use the built-in manual to explore at least 3 arguments for ls) 4.Change r,w,x permission to a file using chmod. 5.Check the value of any 3 environment variables. 6.Use grep to search for specific content in a file. 7.Use sort, grep, and piping to find a string in a list of files in a directory. 8.Explore the super user account and explain when and how would you use it. 9.Use the Linux/UNIX built-in manual and identify 5 additional, distinct, useful commands. Execute each and capture the results. 10.Create a shell script test.sh with 5 different UNIX/Linux commands of your choosing, execute it, and show the results

Q4.One of the file space allocation mechanisms is the most convenient for random access files.Which mechanism is that?

Can you answer 12 and 13?

* Question Completion Status: QUESTION 11 Wite a program (mymv infile outfile) to rename a infile as outfile using file system calls, link(), and unlink() For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt P. QUESTION 12 Write a program that takes the file name as the command line argument and outputs the size of the file in byte the file) !! !!!