System Administration

After a lab is graded, you will have _______ to submit a regrade.

1 week

Quizzes are ___% of your final grade.

20

You can expect an email response from the instructor within ___ hours on weekdays.

24

Which operator allows you to send the output of a command to append information to a text file?

>>

_________ allow you to make a shortcut command to a more complicated command.

Aliases

According to the Course Introduction Video, what might surprise you by the end of the semester?

How much you enjoy the command line

Briefly explain the similarities and differences you notice between Windows and CentOS7.

Some of the main differences between Linux operating systems, and windows OS is that Linux is an open source operating system; however, windows OS is more so commercial. Another difference is Linux has access to source code along with altering code per user needs; however, windows does not have access to source code. Now the similarities between the two are as follows. Both are operating systems, where interfaces are responsible for activities and sharing of a certain computer. Both have graphical user interfaces. Finally both include web browsers that are applications for presenting information on the internet. Linux internet system is Opera, whereas windows in Internet Explorer.

In CentOS, the __ application allows us to interface with the OS via comands

Terminal

What is the absolute path of the directory you're currently in, upon opening the terminal?

The absolute path is /home /cehuser

Explain the difference between the commands ls, ll, and ls -l.

The command ls is used to list information about files along with their directories within that specific file system. When you execute ll command, it displays to you files in that certain shell. However, when you execute Is -I, then all the files will be displayed at the same exact time, rather than in the shell.

Use the uname command to determine the version of Linux kernel release you are running. What version are you running? Hint: you will need to add a modifier to this command.

The kernel version I am running is 3 When you execute this command uname -r you get this line 3.10.0 - 957.27.2.el7.86_64 the first number is the kernel version

What is the required textbook for this course?

There is not a required textbook for this course.

Change directory in your terminal session to your desktop and run the command touch new_file to create a blank file. What does it mean that you "changed directory"? What happened when you ran the command?

When you change your directory, it means to change the directory you are currently working on. When this command is executed, you first change your file directory to your desktop. Afterwards when you run the touch new_file command, you can actually create a new file in that directory which was indeed the desktop.

What is the command to change directory to /etc?

cd /etc

CentOS7 is the Linux ___________ we are using for this class.

distribution

When inputting information with a command, you would use _________.

flags

What is the command to perform a long directory listing?

ls -l ll

What command did you use to determine your absolute path?

pwd

Which Linux command shows you the absolute path for your current directory?

pwd

Which Linux command will print out the absolute path of the directory you are currently in?

pwd

What allows you to run a single command with root permissions?

sudo

Which operator allows you to take the output of a command and use it as a parameter for another command?

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