Operating Systems Question

DescriptionDisplay the complete command that will accomplish the following actions. (ie. If you were
asked which command would allow you to navigate to the /var directory you would display the
following: cd /var (NOT just the command cd))
1. Which command allows you to see more detailed information about the ls command?
The output should appear as such:
2. What command would you use to find the location of the whoami command? (see
example below)
3. Navigate to your home directory by typing cd. Now type ls and notice that there is a
subdirectory called Downloads. Now navigate to the root of the file system by typing cd
/.
From here, which single command would you use to navigate directly to the Downloads
folder that is located in your home directory? The output of the command would be as
follows:
Which command can you use to find out which directory you are currently in?
4. Navigate back to your home directory. Which single command would you use to get a
listing of all the files in that directory, including the hidden files, that also lists additional
information about the files such as the time they were last modified and the files
permissions? Partial output of the command would appear as follows:
5. Navigate to your Documents directory and type touch myfile. Now navigate back to your
home directory. From here what command would you use to get a listing of all the files
in the Documents directory? The output of this command would appear as follows:
6. Navigate to your home (~) directory. From here, type the following commands:
▪ touch file1
▪ ls > file2
▪ ls –l > file3
After doing this, what command would you use to obtain a listing of the contents of this
directory sorted by file size (largest files first, smallest last)?
7. What command would you use to make a copy of the passwd file in the /etc directory and
save it in your home directory as a file called PasswordFile?
8. Create a file called “myfile” by entering the command touch myfile. What command
would you use to rename this file to “yourfile”?
9. What command would you use to make another copy of “yourfile” called “ourfile”?
10. Create a directory called spreadsheets in your home directory. What command would
you use to remove read, write, and execute permissions from group and others for the
spreadsheets directory using the rwx symbols? (2 pts)
11. Using octal permissions, assign the following permissions to the myfile file:
-rwxrw-r- -?
12. When I want to get a detailed directory listing I have to type the command ls –l but I
want to be more efficient and create shortcut so I only have to type lsl to get the same
output as the ls –l command. What command would you use to make this change?
13. What command would you type to execute the 3rd command in your command history list
without retyping the entire command from scratch?
14. What command allows you to view all the processes running on your system? (see
example output below)
15. What command would you use to change the password of student1?

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