Can i get help on a few questions on this midterm. Any help would be greatly appreciated.

ITN 171 Unix I - Midterm Exercises
Solve the following problems using information from chapters 1 – 5, the man pages,
the info pages, and the Internet (if you wish). On the server, create a directory in
your home directory called “midterm.” In the directory, create a file for each question
with the answer in it titled answer1, answer2, answer3, etc. After you are done,
record the answers in this document and email it to rguess@tcc.edu. 5 Point problems
1) What option for wc counts the number of characters of input?
2) What command will recursively delete all files from a directory called
“~/deleted” without ever prompting the user (aka “force”)?
(Warning – Be Careful with those options! DO not delete your home
directory or you will have to redo the homework submitted to date)
3) What command will show the time of the last system boot?
4) What option for grep prints a count of the number of times the word
MCSE appears in the file /tmp/MCSE?
5) Who owns /tmp/script-kiddie.html and what are the permissions on it?
6) Explain, in detail, the purpose and function of the /proc file system.
7) Explain what each of the following special characters do or represent &&, ||, $, #, ~, <, >, >>, |, and ;.
8) Write a single command line that a user might enter to search their
home directory for all files with an extension of html.
9) Write a single command line that will change the permissions on the
file “document1.txt” so that the owner has all rights, members of their
group have read and write rights, and others have read rights.
10)
Write a command that will set the system time of a Linux system
to 11:59AM on May 1st 2014. Note: You do not have the rights to set
the system time so you will have to find the answer by reading up on
the appropriate command and its use.
10-Point problems
11)
Write a single command line that will take the text in a file
named “lower”, convert it into uppercase, and save it to a file named
“UPPER”.
12)
Write a single command line that will search for the string
“Chevy” and replace it with the string “Ford” inside the file “/tmp/cars”
and send the output to a file called ~/cars2.txt
13)
The last command reads the file /var/log/wtmp, which includes
information on all login activity from the current month by default.
Using last, piping and a command from chapters 1-5 write a single
command line that will print a single number representing exactly
how many times you have logged in this month.
14)
Write a single command line using pipe and several
commands you have used so far that will list only the names of the
users who have logged in to the system in the current month, sort the
output, and remove any duplicate name entries. Hint: check out the
last command from #2 (man last).
15)
What command will mount the device /dev/sdc1 to the mount
point /media/sdc1 with a file system type of ext3 but not allow any
binaries (the *NIX term for programs) to be executed from the device? Hint: There is a very specific option to the mount command
for that last part.

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Status NEW Posted 02 May 2017 07:05 AM My Price 9.00

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