List the files in the current directory

Reference no: EM132187680

Question: Working on the Command Line

These labs should be performed on the Kali Linux operating system that you installed in Before you begin this lab, log in to it and exercise the following and write down the commands.

Lab 2.1 Manage Files

STEP 1. Open a terminal window.

STEP 2. Display your current directory.

STEP 3. Using an absolute pathname, switch to the /etc directory.

STEP 4. Using a relative pathname, move to the /etc/skel directory.

STEP 5. Using a relative pathname, move up one directory.

STEP 6. List the files in the current directory.

STEP 7. Perform a "long display" listing of the files in the current directory.

STEP 8. List all the files in the current directory that begin with the letter s.

STEP 9. Run the command that will determine the type of contents in the /etc/group file.

STEP 10. Display only the last five lines of the /etc/group file.

STEP 11. Execute the command to return to your home directory.

STEP 12. Make a directory named data in the current directory.

STEP 13. Copy the /etc/passwd file into the data directory.

STEP 14. Copy the /etc/ppp directory into the current directory (and ignore any "Permission denied" error messages).

STEP 15. Rename the ppp directory that is located in the current directory to peers.

STEP 16. Update the timestamp of the data/passwd file to the current date and time.

STEP 17. Create a new empty file named test in the data directory.

STEP 18. Delete the data/passwd file.

STEP 19. Delete the peers directory.

Lab 2 Using Shell Features

STEP 1. Open a terminal window.

STEP 2. Display the value of the HOME variable.

STEP 3. Display all the shell variables and values.

STEP 4. Display the value of the TEST variable. (Note that this variable currently has no value.)

STEP 5. Change the current shell so that an error message will be displayed when an undefined variable is used.

STEP 6. Modify the PATH variable to include the /opt directory.

STEP 7. Create a new environment variable named EVENT and set it to the value "now" by using a single command.

STEP 8. Display all the environment variables.

STEP 9. Create an alias in the current shell for the ls command so it will run the command ls -a.

STEP 10. Display all the aliases for the current shell.

STEP 11. Remove the fgrep alias from the current shell.

STEP 12. Display a list of previously executed commands.

STEP 13. Re-execute the last ls command from the history list.

STEP 14. Change the maximum number of commands stored in the history list for the current shell to a value of 2000.

STEP 15. Execute the ps -fe command and pipe the output to the less command.

STEP 16. List all filenames in the /etc directory structure (including subdirectories) that are group owned by the lp group.

STEP 17. Display all the files in the /etc/passwd file that contain at least three sequential numbers.

STEP 18. Display the /etc/passwd file with all occurrences of root replaced with XXXX.

Lab 2 Compressing Files

STEP 1. Open a terminal window.

STEP 2. While using the verbose feature, create a tar file named ppp.tar that contains the contents of the /etc/ppp directory. (Ignore any error messages.)

STEP 3. List the contents of the ppp.tar file.

STEP 4. Create a directory named tar_data in the current directory.

STEP 5. Extract the contents of the ppp.tar file into the tar_data directory.

STEP 6. Compress the ppp.tar file by using the gzip command but don't overwrite the existing ppp.tar file; rather, create a new file named ppp.tar.gz.

STEP 7. Compress the ppp.tar file with the bzip2 command but don't overwrite the existing ppp.tar file; rather, create a new file named ppp.tar.bz2.

STEP 8. Compare the size of the ppp.tar.gz and ppp.tar.bz2 files to determine which one is smaller.

STEP 9. Delete the ppp.tar file.

STEP 10. Unzip the ppp.tar.gz file.

Reference no: EM132187680

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